WorldWideScience

Sample records for res ft tuition

  1. Losing Sleep over Tuition

    Science.gov (United States)

    Fogg, Piper

    2009-01-01

    With two children already in college and three more in the wings, the Nwanguma family knows about sacrifice. The annual tuition bill for Prince George's Community College typically comes to between $3,500 and $4,000 for the oldest son, Chuka. To afford it, Chuma Nwanguma, a Nigerian immigrant, often works overtime in addition to his regular night…

  2. Tuition Discounting for Revenue Management

    Science.gov (United States)

    Hillman, Nicholas W.

    2012-01-01

    Over the past decade, institutionally-funded financial aid (or "tuition discounts") have been the fastest-growing item within most public four-year college and university operating budgets. One explanation for this trend is due to the changing structure of public colleges' revenue streams, as tuition and fees have replaced state appropriations as…

  3. Why Tuition Keeps Going Up.

    Science.gov (United States)

    Frances, Carol

    1985-01-01

    While tuition is increasing faster than the cost of living, a longer perspective indicates that colleges and universities are victims of past rather than current inflation. Fiscal pressures will continue for some time, reflected in higher tuition, but the rate of return on investment in a college degree should rise. (MSE)

  4. A Model of College Tuition Maximization

    Science.gov (United States)

    Bosshardt, Donald I.; Lichtenstein, Larry; Zaporowski, Mark P.

    2009-01-01

    This paper develops a series of models for optimal tuition pricing for private colleges and universities. The university is assumed to be a profit maximizing, price discriminating monopolist. The enrollment decision of student's is stochastic in nature. The university offers an effective tuition rate, comprised of stipulated tuition less financial…

  5. Balancing Tuition Predictability and Affordability: The Pitfalls of Guaranteed Tuition Plans

    Science.gov (United States)

    Delaney, Jennifer A.; Kearney, Tyler D.; Hemenway, Bradley

    2016-01-01

    As tuition levels rise, predictability is an increasingly important consideration of college financing. In this article, the authors explore contemporary policy tools intended to enhance tuition predictability. They specifically consider guaranteed tuition plans. The authors begin their discussion by considering the prevalence of guaranteed…

  6. State Legislatures Debate Tuition for Illegal Immigrants

    Science.gov (United States)

    Keller, Josh

    2007-01-01

    With plans for a sweeping federal immigration bill stuck in Congress, Arizona and a growing number of states have decided to try to deal with the in-state-tuition issue themselves. This spring lawmakers in at least 22 states have already considered or are debating legislation concerning in-state tuition to illegal immigrants. In about half of…

  7. Adam Smith, Religion, and Tuition Tax Credits.

    Science.gov (United States)

    Alexander, Kern

    1983-01-01

    Examines tuition tax credit programs in framework of Adam Smith's ideas on the economic impact of established churches. Finds that tuition tax credits would amount to state expenditures to relieve the financial burden of parochial school parents and would allow churches to invest commercially to maintain their charitable functions. (JW)

  8. Taxes, Tuition Fees and Education for Pleasure

    DEFF Research Database (Denmark)

    Malchow-Møller, Nikolaj; Nielsen, Søren Bo; Skaksen, Jan Rose

    2011-01-01

    The fact that education provides both a productive and a consumptive (nonproductive) return has important and, in some cases, dramatic implications for optimal taxes and tuition fees. Using a simple model, we show that when the consumption share in education is endogenous and tuition fees...

  9. Tuition Tax Credits: Issues of Equity.

    Science.gov (United States)

    Catterall, James S.

    To examine equity issues involving proposed Federal income tax credits for private school tuition, the author uses data from the Bureau of the Census and other governmental sources to estimate the effects of tuition tax credit (TTC) plans. After discussing equity and educational policy, he compares would-be TTC recipients--private school families…

  10. The Impacts of State Control Policies on College Tuition Increase

    Science.gov (United States)

    Kim, Mikyong Minsun; Ko, Jangwan

    2015-01-01

    This study examined state efforts to control tuition increases over the past 10 years. Using data from 50 states and 540 public 4-year universities and colleges, we examined average tuition increases in dollar amount and percentage of change by the type of state tuition control policy and by the authority for tuition-setting power. The state…

  11. Student Tuition Charges: Comparisons, Options, and Implications and An Appendix to Student Tuition Charges: Comparisons, Options, and Implications.

    Science.gov (United States)

    Diaz, Porfirio R.

    National and state comparisons of tuition and fee charges, as well as various policy options presented to the New Mexico Commission on Higher Education, are provided. An introduction to tuition and fee calculation is followed by definitions of tuition, required student fees, and student residency status. A study of tuition and fees at New Mexico…

  12. Accounting for the Rise in College Tuition

    OpenAIRE

    Grey Gordon; Aaron Hedlund

    2015-01-01

    We develop a quantitative model of higher education to test explanations for the steep rise in college tuition between 1987 and 2010. The framework extends the quality- maximizing college paradigm of Epple, Romano, Sarpca, and Sieg (2013) and embeds it in an incomplete markets, life-cycle environment. We measure how much changes in underlying costs, reforms to the Federal Student Loan Program (FSLP), and changes in the college earnings premium have caused tuition to increase. All these change...

  13. The Political Economy of College Prepaid Tuition Plans

    Science.gov (United States)

    Baird, Katherine

    2006-01-01

    Rising tuition has led many states to offer college prepaid tuition plans. These plans are consistent with the trend in higher education policy toward meeting the needs of wealthier households. The paper argues that the public interest in these plans is hard to find; moreover, median voter theory suggests that prepaid tuition plans may have the…

  14. The Effect of Tuition Increases on Business Student Decisions

    Science.gov (United States)

    Godek, John; Murray, Kyle B.; Karns, Gary

    2015-01-01

    Tuition increases have become all too common as states have cut spending to public institutions and private schools face declining enrollments. As such, understanding the effects of various methods of framing tuition increases is an important, but infrequently researched topic. The authors examine different ways to frame tuition increases…

  15. 29 CFR 1949.1 - Policy regarding tuition fees.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 9 2010-07-01 2010-07-01 false Policy regarding tuition fees. 1949.1 Section 1949.1 Labor... Institute § 1949.1 Policy regarding tuition fees. (a) The OSHA Training Institute shall charge tuition fees for all private sector students attending Institute courses. (b) The following private sector students...

  16. Financial Condition and Tuition in Private Nonprofit Baccalaureate Higher Education

    Science.gov (United States)

    Peruso, Dominick F., Jr.

    2012-01-01

    The rate of tuition inflation at U.S. colleges and universities is alarming and threatens both access and choice. Private nonprofit baccalaureate colleges often possess the highest tuition rates but routinely face financial challenges. This study was designed to better understand the relationship between tuition and financial condition for the…

  17. Medical school tuition and young physicians' indebtedness.

    Science.gov (United States)

    Jolly, Paul

    2005-01-01

    Medical school tuition and medical student debt have increased dramatically during the past two decades, but loans are available on favorable terms, which makes it possible for students without personal or family means to get a medical education. As an investment, medical education is an excellent choice; its net present value is more than a million dollars. Cost is nevertheless a strong deterrent to potential applicants, especially minority applicants. If tuition and indebtedness continue to increase while physician incomes do not, there may come a time when only the wealthy can finance a medical education, and medical schools may have increasing difficulty recruiting qualified students.

  18. The Case Against Tuition Tax Credits.

    Science.gov (United States)

    Shannon, Thomas A.

    Tuition tax credits for private elementary and secondary schools would be bad law, bad economics, and bad public policy. These points are made in this twenty-first chapter of a book on school law. Legal arguments against tax credits are based on a number of court decisions concerning church-state separation, particularly the Supreme Court decision…

  19. The Waldorf Tuition and Grant Reduction Experiment.

    Science.gov (United States)

    Hamm, William E.

    1995-01-01

    Counter to national trends at private colleges, Waldorf College (Iowa) found it could increase enrollment by reducing tuition and institution-based student aid. The context for implementing this policy, short- and long-term results of the decisions, lessons learned, and some more-recent initiatives are reviewed. (MSE)

  20. The Goals for Regulating College Tuition

    Science.gov (United States)

    Zeng, Xiaodong

    2009-01-01

    Regulation refers to governmental restrictions over enterprise in order to protect public interest. Research on governmental regulation in China primarily focuses on public utility, and inadequate attention has been paid to regulating college tuition. Currently, although the educational administrative agencies have successfully kept college…

  1. Tuition Fees, as User Prices, and Private Incentives

    OpenAIRE

    Economides, George; Philippopoulos, Apostolis; Sakkas, Stelios

    2016-01-01

    This paper studies the aggregate and distributional implications of introducing tuition fees for public education services into a tax system with income and consumption taxes. The setup is a neoclassical growth model where agents differ in capital holdings. We show that the introduction of tuition fees (a) improves individual incentives to work and/or save and (b) can be both efficient and equitable. The focus is on the role of tuition fees as an extra price and how this affects private incen...

  2. Tuition reimbursement for special education students.

    Science.gov (United States)

    Zirkel, P A

    1997-01-01

    The spring 1996 issue of The Future of Children on special education reviewed the legislative and litigation history of the Individuals with Disabilities Education Act (IDEA). This Revisiting article examines the impact of the two U.S. Supreme Court cases setting forth school districts' responsibility to reimburse parents of students with disabilities for private school tuition under certain circumstances. An extensive examination of published cases reveals that the number of cases litigated has increased but that the courts are no more likely to decide in favor of parents than they were before the Supreme Court rulings.

  3. Who Benefits from Tuition Discounts at Public Universities?

    Science.gov (United States)

    Hillman, Nicholas W.

    2010-01-01

    This article uses data from the 2004 National Postsecondary Student Aid Study to provide insight about the range of tuition discounting practices at public institutions. Specifically, it examines the characteristics of students who receive tuition discounts from public four-year colleges and universities. A binary logistic regression is applied to…

  4. Tuition Discounting and Socioeconomic Diversity at Larger Private Universities

    Science.gov (United States)

    Reinoehl, Jason K.; Kowalski, Theodore J.

    2015-01-01

    Tuition discounting is a tactic deployed by many private four-year institutions as a means for enhancing either tuition revenue or institutional image. This study examines associations between "socioeconomic diversity" and two aspects of institutional grants--"freshman discount rate" and "freshman grant recipient discount…

  5. Affordable Online Maths Tuition: Evaluation Report and Executive Summary

    Science.gov (United States)

    Torgerson, Carole; Ainsworth, Hannah; Buckley, Hannah; Hampden-Thompson, Gillen; Hewitt, Catherine; Humphry, Deborah; Jefferson, Laura; Mitchell, Natasha; Torgerson, David

    2016-01-01

    "Affordable Online Maths Tuition" is a one-to-one tutoring programme where pupils receive maths tuition over the internet from trained maths graduates in India and Sri Lanka. It is delivered by the organisation Third Space Learning (TSL). Tutors and pupils communicate using video calling and a secure virtual classroom. Before each…

  6. Battle Continues over In-State Tuition for Illegal Immigrants

    Science.gov (United States)

    Gilroy, Marilyn

    2009-01-01

    Ten states now offer in-state college tuition rates to illegal immigrant students. Others are struggling to enact similar policies. But while many advocates want to open the doors to higher education for undocumented students, critics say the laws granting in-state tuition discriminate against other low-income students and legal residents of the…

  7. 42 CFR 136.373 - Scholarship and tuition.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Scholarship and tuition. 136.373 Section 136.373... J-8-Health Professions Pregraduate Scholarship Program for Indians § 136.373 Scholarship and tuition. (a) Scholarship grant awards under this subdivision shall consist of: (1) A stipend of $400 per month...

  8. 42 CFR 136.323 - Scholarship and tuition.

    Science.gov (United States)

    2010-10-01

    ... 42 Public Health 1 2010-10-01 2010-10-01 false Scholarship and tuition. 136.323 Section 136.323... J-3-Health Professions Preparatory Scholarship Program for Indians § 136.323 Scholarship and tuition. (a) Scholarship grant awards under this subdivision shall consist of: (1) A stipend of $400 per month...

  9. College Tuition and Perceptions of Private University Quality

    Science.gov (United States)

    Tang, Thomas Li-Ping; Tang, David Shin-Hsiung; Tang, Cindy Shin-Yi

    2004-01-01

    This research employs institutional characteristics and market-related factors to predict undergraduate students' tuition at 190 private colleges and universities in the USA. Results showed that the strongest correlations among variables for college tuition were reputation ranking and SAT scores. Results of a hierarchical multiple regression…

  10. Anatomy of a Tuition Freeze: The Case of Ontario

    Science.gov (United States)

    Rexe, Deanna

    2015-01-01

    Using two conceptual frameworks from political science--Kingdon's (2003) multiple streams model and the advocacy coalition framework (Sabatier & Jenkins-Smith, 1993)--this case study examines the detailed history of a major tuition policy change in Ontario in 2004: a tuition freeze. The paper explores the social, political, and economic…

  11. Nonresident Tuition and Fees at SUNY. Rates, Policies, and Consequences

    Science.gov (United States)

    Abbey, Craig W.; Armour-Garb, Allison

    2010-01-01

    To inform the discussion of out-of-state tuition, SUNY officials asked the Nelson A. Rockefeller Institute of Government to conduct a study that addresses three questions. First, how do SUNY's undergraduate nonresident tuition and fees compare to those charged by comparable higher education institutions? Second, what is known about the effects of…

  12. Phantom Dollars: Findings from the 1996 NACUBO Tuition Discounting Survey.

    Science.gov (United States)

    Lapovsky, Lucie

    1997-01-01

    Results of a National Association of College and University Business Officers survey concerning tuition discounting policies found that one-third of higher education's stated revenue stream consists of phantom dollars, with less than 10% of students paying published tuition. Data on freshman and other discounting rates, financial aid strategies,…

  13. The Demand for Higher Education: Pennsylvania's Nonresident Tuition Experience.

    Science.gov (United States)

    Noorbakhsh, Abbas; Culp, David

    2002-01-01

    Explores the estimation of tuition elasticity of resident and nonresident demand for higher education in the Pennsylvania State System of Higher Education. Finds that nonresident demand is price elastic, thus explaining the 40 percent decline in nonresident enrollment between 1991 and 1996 after average nonresident tuition increased nearly 20…

  14. FT4 and FT3 in euthyroid states with autonomy

    International Nuclear Information System (INIS)

    Emrich, D.; Schoendube, H.; Sehlen, S.; Schreivogel, I.

    1985-01-01

    The results presented here are obtained by the analogue tracer method. Our results indicate that whatever we are measuring with FT 4 and FT 3 in patients with autonomy these parameters behave in nearly the same way as the FT 4 I and TT 3 . There was no clear evidence that FT 4 and FT 3 were more sensitive that FT 4 I and TT 3 . (orig./MG)

  15. Fusion technology (FT)

    International Nuclear Information System (INIS)

    1978-01-01

    The annual report of tha fusion technology (FT) working group discusses the projects carried out by the participating institutes in the fields of 1) fuel injection and plasma heating, 2) magnetic field technology, and 3) systems investigations. (HK) [de

  16. A Study of the Tuition of Middle Schools in Prwear Tokyo Prefecture

    OpenAIRE

    Karasuda, Naoya

    2002-01-01

    The purpose of this paper is to clarifying the tuition in middle schools at the prewar Tokyo prefecture. The tuition differed between the public schools and the private schools. In the 1890s, most expenses required for management of middle schools was provided with tuition in both private amd public schools. At this time, the tuition of public schools was higher than the private schools. After 1900 tuition of public schools became cheaper than private schools. As expenses of public schools, i...

  17. WHAT ARE THEY BUYING IN PRIVATE TUITION? MICRO-LEVEL PERSPECTIVE ON THE PRACTICE OF PRIVATE TUITION BY GRADE 9 STUDENTS IN KALE TOWNSHIP, MYANMAR

    OpenAIRE

    Kam Tung Tuang Suante

    2017-01-01

    Private tuition is the practice of academic teaching and learning from outside of the school with a fee but a few of studies acknowledged what private tuition provides to the receivers beyond the teaching of academic subjects. This study explored the intensity and nature of private tuition through 1119 Grade 9 students’ survey reports and 18 interviewees’ responses. The study revealed the common practice of private tuition in Myanmar and 69.5% of the participants are in private boarding tuiti...

  18. Tracking the Discount: Tuition Discount Rates, Net Tuition Revenue, and Efforts to Inform Institutional Practices. Professional File. Article 133, Fall 2013

    Science.gov (United States)

    Davis, Natalie Pullaro; Redd, Kenneth E.

    2013-01-01

    This article uses findings from the 2012 Tuition Discounting Study (TDS) conducted by the National Association of College and University Business Officers (NACUBO) to provide a framework for institutional researchers to develop and adapt their own custom tuition discounting definitions and formulas. Under tuition discounting, colleges and…

  19. A Hidden Cause of Rising Tuition: Tuition Discounting in Public Colleges and Universities. The Progress of Education Reform. Volume 15, Number 4

    Science.gov (United States)

    Gianneschi, Matt; Pingel, Sarah

    2014-01-01

    Why does tuition increase faster than inflation? And why does tuition continue to increase even when states increase their investments in public colleges and universities? These questions have perplexed policymakers and higher education consumers alike. Though tuition setting can be very complicated, one of the drivers for rising costs is price…

  20. In-state tuition for undocumented immigrants and its impact on college enrollment, tuition costs, student financial aid, and indebtedness

    OpenAIRE

    Amuedo-Dorantes, Catalina; Sparber, Chad

    2012-01-01

    The 1996 Immigration Reform and Responsibility Act barred states from giving unlawful residents postsecondary education benefits that states do not offer to U.S. citizens. In contrast to this federal law, several states have passed legislation explicitly allowing undocumented immigrants to pay in-state tuition rates. We use a difference-in-difference estimation methodology to assess intended and unintended consequences of this tuition policy. First, we find evidence consistent with past studi...

  1. What goes around, comes around: a history of medical tuition*

    Science.gov (United States)

    Duffin, Jacalyn

    2001-01-01

    IN THIS ARTICLE THE ACTUAL AND RELATIVE COSTS OF TUITION AT 3 Ontario medical schools are traced over the past 150 years. In addition, the factors that led to Ontario's nearly 4-decade experiment in private medical education (and to its eventual demise) are presented. In relative terms, tuition was stable for over a century, then declined (after 1960) as government support rose. Access to medical training for students from middle-income families may also have improved steadily until the late 1980s. Because there is no shortage of people wanting to become doctors, there seems to be no limit to the price that could be set for a medical education. The recent hikes in tuition have outstripped inflation and may be reducing accessibility to restrictive levels, similar to those that prevailed in the 19th century. The author invites readers to question current trends. PMID:11202668

  2. What goes around, comes around: a history of medical tuition.

    Science.gov (United States)

    Duffin, J

    2001-01-09

    In this article the actual and relative costs of tuition at 3 Ontario medical schools are traced over the past 150 years. In addition, the factors that led to Ontario's nearly 4-decade experiment in private medical education (and to its eventual demise) are presented. In relative terms, tuition was stable for over a century, then declined (after 1960) as government support rose. Access to medical training for students from middle-income families may also have improved steadily until the late 1980s. Because there is no shortage of people wanting to become doctors, there seems to be no limit to the price that could be set for a medical education. The recent hikes in tuition have outstripped inflation and may be reducing accessibility to restrictive levels, similar to those that prevailed in the 19th century. The author invites readers to question current trends.

  3. An Investigation of Student Response to a Potential Tuition Cap Increase at Casper College

    Science.gov (United States)

    Davis, Elizabeth; Aitchison, Thomas; Allen, Eric; Gomez, Carrie; Laird, Sheree; Raczynska, Kaja

    2015-01-01

    Wyoming Community College Commission policy currently states any student enrolled for more than 12 credit hours will be charged tuition for only 12 credit hours. This policy is referred to as the tuition cap. In November 2010, the commission discussed increasing the tuition cap to 15 credits. An increase from 12 to 15 credits would have…

  4. Variability in United States Allopathic Medical School Tuition.

    Science.gov (United States)

    Gil, Joseph A; Park, Sarah H; Daniels, Alan H

    2015-11-01

    Over the course of the last generation, the cost of medical school attendance and medical student debt has increased drastically. Medical student debt has been reported as high as $350,000, and the Association of American Medical Colleges (AAMC) reports that medical school tuition continues to increase annually. The increasing cost of medical education and associated financial burden is now beginning to deter potential applicants from pursuing a career in medicine. In this study we aimed to assess medical school tuition across the US. We hypothesized that the cost of medical school attendance is variable across all regions of the US, and as a result, the financial burden on medical students is inconsistent. All 123 allopathic medical schools accredited by the AAMC were assessed in this investigation. In-state and out-of-state tuitions for the year 2016 were obtained from U.S. News and World Report. Additionally, medical school size was collected. Regions were defined according to the US Census Bureau definition, with the US being divided into 4 regions: Northeast, Midwest, South, and West. There was no difference in average medical school size among the 4 regions (P > .05). Average in-state tuition was $38,291.56 ± $9801.38 (95% confidence interval [CI], $34,658.07-$41,513.46) in the Midwest, $45,923.04 ± $9178.87 (95% CI, $42,566.28-$49,216.78) in the Northeast, $32,287.78 ± $12,277.53 (95% CI, $28,581.90-$35,378.68) in the South, and $37,745.40 ± $11,414.37 (95% CI, $30,063.28-$40,458.99) in the West. In-state tuition in the South was significantly lower than in the Northeast, West, and Midwest (P tuition in the Northeast was significantly higher than in the South, West, and Midwest (P tuition is $54,104.04 ± $8227.65 (95% CI, $51,207.6-$57,000.39) in the Midwest, $53,180.10 ± $3963.71 (95% CI, $51,761.71-$54,598.50) in the Northeast, $48,191.86 ± $12,578.13 (95% CI, $44,595.84-$51,787.89) in the South, and $52,920.47 ± $7400.83 (95% CI, $49

  5. In medias res

    DEFF Research Database (Denmark)

    Foote, Jonathan

    2017-01-01

    nor does he begin the Trojan War ab ovo (with the egg) but always he hurries to the action and snatches the listener in medias res (into the middle of things)      Horace, Ars Poetica 145–147 Good epic poets do not commence their tale from the beginning—ab ovo (with the egg)—as Horace states, but...

  6. Tuition Discounting through Unfunded Institutional Aid at Private Baccalaureate Colleges

    Science.gov (United States)

    Martin, Jeremy Paul

    2012-01-01

    Colleges and universities discount tuition by providing institutional aid to reduce the actual amount paid by a student. Discount rates are substantial and continue to increase, particularly at private institutions. Funded institutional discounts are linked to gifts or endowment income restricted to financial aid. Unfunded institutional discounts…

  7. Internationalisation as Marketisation? Tuition Fees for International Students in Finland

    Science.gov (United States)

    Kauko, Jaakko; Medvedeva, Anna

    2016-01-01

    Having been on the agenda in Finnish policy-making for a decade, tuition fees for students outside the European Union and the European Economic Area became reality in the beginning of 2016. Drawing on institutional theory the current article tracks this development through the analysis of documents and interviews on different levels. The…

  8. Do Prepaid Tuition Plans Affect State Support for Higher Education?

    Science.gov (United States)

    Baird, Katherine E.

    2006-01-01

    Subsidies to higher education in the United States have long been guided by the belief that policy should encourage college attendance. In principle, if not always in practice, policy has for some time sought to accomplish this by addressing college affordability. General subsidies that keep tuition at public institutions low are coupled with…

  9. Where Does All That Tuition Go? Education Outlook. No. 12

    Science.gov (United States)

    Schneider, Mark

    2009-01-01

    As any parent with a college-bound child knows, college tuitions are rising much faster than inflation. One way to control costs is to make parents better consumers by giving them better price and outcome information. But the true cost of a college education is hard to calculate because of complex and opaque pricing structures. Today, colleges are…

  10. The Politics of Public College Tuition and State Financial Aid

    Science.gov (United States)

    Doyle, William R.

    2012-01-01

    What explains the different levels of tuition and financial aid observed in the United States? This study hypothesizes that state-level political characteristics account for much of the variation observed. Of particular importance are the ideology of state legislators and the relative influence of public and private institutions. Estimates of a…

  11. Global Tuition Pricing: An In-Depth Analysis

    Science.gov (United States)

    Cupp, Jason W.

    2012-01-01

    This study was conducted to determine if there is a relationship between select pricing schemes used throughout the world and positive social outcomes. The rising costs of college tuition and escalating student debt has raised the concern about how students should pay for financing their education and whether the current system is the most…

  12. An Assessment of College Tuition Increases and Retention

    Science.gov (United States)

    Karasek, Ray, III

    2016-01-01

    This study examines the relationship between tuition increases, retention, and Pell Grant recipients attending college for the first time at 279 four-year public universities in the southeastern and southwestern regions of the United States. The data for this study was gathered from the Integrated Postsecondary Education Data System (IPEDS) using…

  13. Tuition and Fees Report: Fiscal Year 2014-15

    Science.gov (United States)

    Colorado Department of Higher Education, 2015

    2015-01-01

    Tuition policy for Colorado's public institutions has been impacted by two statutory requirements that were added in the 2014 legislative session. First, the Governor requested, and the General Assembly approved in the College Affordability Act (SB14-001), a historic $60 million (11 percent) increase for public institutions of higher education.…

  14. Calculating the True Cost of Tuition Freezes at Public Colleges

    Science.gov (United States)

    Kelderman, Eric

    2009-01-01

    Maryland's governor, Martin J. O'Malley, didn't get much of his legislative agenda through the General Assembly this year, but he did succeed on one front: preserving enough state aid for the public-university system to stave off a tuition increase for the fourth consecutive year. Like politicians in several states, Mr. O'Malley, a Democrat, made…

  15. Use of the Maple System in Math Tuition at Universities

    OpenAIRE

    Kovacheva, Tsvetanka

    2007-01-01

    The following article explores the application of educational technologies at a University level and their contribution in enhancing the educational effectiveness. It discusses the capabilities of computer algebra systems, such as Maple. It is integrated in the math tuition of the Technical University (TU) in Varna and is used by its students during laboratory exercises.

  16. A Tuition Bubble? Lessons from the Housing Bubble

    Science.gov (United States)

    Gillen, Andrew

    2008-01-01

    Systemic increases in tuition across the board indicate that the structure of the higher education market plays a fundamental role in encouraging these increases. Part of the problem is that public policy attempts to subsidize attendance for too many students on the assumption that this will increase access to higher education. These subsidies,…

  17. Climbing Walls and Climbing Tuitions. A Delta Perspective

    Science.gov (United States)

    Kirshstein, Rita J.; Kadamus, James A.

    2012-01-01

    High-end amenities like rock climbing walls on college campuses have become an easy target for those attempting to explain rising tuitions. This Delta Perspective looks beyond the media attention surrounding these "frills" to examine more serious questions about spending on campus facilities, college spending in general, and the real drivers of…

  18. Can You Beat the SC Tuition Prepayment Program?

    Science.gov (United States)

    Fitzkee, Thomas L.

    This paper consists of a learning unit for college algebra in which the problem presents three different payment plans for a tuition plan to pay for college expenses. The details of each payment plan are presented, each followed by several exercises so that comparisons of the results can be made across payment plans. (MM)

  19. DO PUBLIC TUITION SUBSIDIES PROMOTE COLLEGE ENROLLMENT? EVIDENCE FROM COMMUNITY COLLEGE TAXING DISTRICTS IN TEXAS

    OpenAIRE

    Paco Martorell; Brian McCall; Isaac McFarlin

    2014-01-01

    This paper estimates the effect of tuition rates on college enrollment using data for Texas from the 1990 and 2000 Censuses and the 2004 – 2010 American Community Surveys and geographical data on Community College Taxing Districts. The effect of tuition on enrollment is identified by the facts that tuition rates for those living within a taxing district are lower than those living outside the taxing district and in Texas not all geographic locations are in a taxing district. While the estimat...

  20. Lõhe Res Publicas / Eve Heinla

    Index Scriptorium Estoniae

    Heinla, Eve, 1966-

    2005-01-01

    Tallinna linnapea Tõnis Palts on vastu Tallinna volikogu Res Publica fraktsiooni esimehe Toomas Tautsi abikaasa Kristina Tautsi tööleasumisele Lääne-Tallinna keskhaigla haldusjuhina. T. Paltsi kirjast Res Publica Tallinna piirkonna juhatusele. Lisa: Kuidas lahvatas pealinna võimutüli. Kommenteerivad: Maret Maripuu, Tõnis Palts, Vladimir Maslov

  1. Res Publica aps / Erkki Bahovski

    Index Scriptorium Estoniae

    Bahovski, Erkki, 1970-

    2003-01-01

    Autori sõnul tekitavad tänavatel ülesseatud postrid, kus peaminister Juhan Parts kutsub üles ütlema "jah" Euroopa Liidule, kummastust, sest ehkki on tegemist Res Publica kampaaniaga, on tavainimesel raske vahet teha valitsuse justkui neutraalse referendumikampaania ja Res Publica "jah"-kampaania vahel

  2. A European Res publica

    Directory of Open Access Journals (Sweden)

    Ola Zetterquist

    2011-05-01

    Full Text Available The article analyses the fundamental constitutional enigma of the European Union (EU, namely whether the EU can be considered as a (from its Member States separate and independent constitutional legal order. The EU is often referred to as a legal order sui generis, i.e. of a unique character that defies traditional definitions. More specifically, the notion of an independent and separate EU is at odds with the idea of the sovereign state. The notion of the EU as a legal order sui generis is too much influenced by the models of the sovereign state and sovereignty (in the vein of Thomas Hobbes. The key component in the Hobbesian idea of sovereignty is freedom as non-interference. A sovereign state is consequently a state that is free from, i.e. not interfered with by, external actors like, for example, the EU. Put differently, either the EU is sovereign or the Member States are sovereign. By shifting the perspective to a neo-Roman republican understanding of freedom as non-domination the constitutional picture of the EU will become more nuanced. Res publica is best understood as what citizens hold in common and above their narrow self-interest. According to a republican notion of the constitution the purpose of the law is to eliminate the possibility of arbitrary domination. For that reason, not all interference is to be considered as a restriction of freedom but only those restrictions that cannot be justified according to the res publica. Viewed through the republican prism it can be argued that the EU represents an important advancement in securing freedom as non-domination without implying that the EU must become a state. The fundamental enigma can thus be rephrased as a clash between two diverging concepts of freedom. Whereas the EU will always be at odds with the idea of sovereignty (however framed it will be much easier to reconcile with the republican ideal. DOWNLOAD THIS PAPER FROM SSRN: http://ssrn.com/abstract=1837332

  3. Credit supply and the rise in college tuition: evidence from the expansion in federal student aid programs

    OpenAIRE

    Lucca, David O.; Nadauld, Taylor D.; Shen, Karen

    2015-01-01

    When students fund their education through loans, changes in student borrowing and tuition are interlinked. Higher tuition costs raise loan demand, but loan supply also affects equilibrium tuition costs - for example, by relaxing students' funding constraints. To resolve this simultaneity problem, we exploit detailed student-level financial data and changes in federal student aid programs to identify the impact of increased student loan funding on tuition. We find that institutions more expos...

  4. The International Market for MBA Qualifications: The Relationship between Tuition Fees and Applications

    Science.gov (United States)

    Elliott, Caroline; Soo, Kwok Tong

    2013-01-01

    This paper explores the relationship between tuition fees charged by MBA programmes and the number of applications to these programmes, using a panel dataset comprising universities from countries across the world. Using Three-Stage-Least-Squares methods for simultaneous equations, we find a two-way relationship between tuition fees and…

  5. Misplaying the Angles: A Closer Look at the Illinois Tuition Tax Credit Law.

    Science.gov (United States)

    Pathak, Arohi; Wessely, Mike; Mincberg, Elliot

    In 1999, Illinois enacted its tuition tax credit law, which offers tax credits to taxpayers whose own children are attending school, as opposed to tax credits to businesses and/or individuals who contribute to tuition scholarship programs. Recent data suggest that the Illinois tax credit program is benefiting middle- and upper-class families more…

  6. The Impact of Tuition Increases on Undocumented College Students' Schooling Decisions

    Science.gov (United States)

    Conger, Dylan

    2014-01-01

    This paper examines the effect of a short-lived increase in tuition rates on undocumented college students' schooling decisions. In the spring of 2002, the City University of New York (CUNY) reversed its policy of charging in-state tuition rates to undocumented college students who could demonstrate that they migrated to New York at a relatively…

  7. Independent Thinking: HBCUs Explore Ways to Liberate Themselves from Tuition Dependence

    Science.gov (United States)

    Hernandez, Arelis

    2010-01-01

    Historically Black colleges and universities (HBCUs) are heavily tuition-dependent. When enrollment goes down, the schools are vulnerable. This article discusses how HBCUs explore ways to liberate themselves from tuition dependence. It describes how historically Black college and university leaders are moving their institutions from a model of…

  8. Legislative Agenda Setting for In-State Resident Tuition Policies: Immigration, Representation, and Educational Access

    Science.gov (United States)

    McLendon, Michael K.; Mokher, Christine G.; Flores, Stella M.

    2011-01-01

    Few recent issues in higher education have been as contentious as that of legislation extending in-state college tuition benefits to undocumented students, initiatives now known as in-state resident tuition (ISRT) policies. Building on several strands of literature in political science and higher education studies, we analyze the effects of…

  9. Issues 2016: Will Free Tuition Increase the Number of College Graduates? Issue Brief

    Science.gov (United States)

    Eden, Max

    2016-01-01

    To increase the number of graduates, a growing number of pundits and politicians favor providing free tuition for students attending public colleges and universities. This proposal is flawed. Affordability is not the main obstacle to getting a degree. There is also a risk that a tuition-free system for public institutions would leave them solely…

  10. Many Public Colleges Have Raised Tuition Despite Increases in State Support

    Science.gov (United States)

    Smith, Lauren

    2007-01-01

    Public colleges often blame their tuition increases on state lawmakers who the colleges say have not given them enough extra money to keep up with rising costs. This year, many states' public colleges received sizable infusions of public money and still raised tuition. In nearly half of the states, both state appropriations for higher education…

  11. Tuition and Financial Aid: Nine Points for Boards to Consider in Keeping College Affordable

    Science.gov (United States)

    Baum, Sandy

    2011-01-01

    The headlines report that college tuition is rising rapidly and students are struggling to pay for college. Financial-aid issues have also been in the news lately, with questions about student debt particularly prominent. Non-tuition revenues are weak because of declining state appropriations, depleted endowments, and anemic annual giving. At the…

  12. Net Tuition and Net Price Trends in the United States: 2000-2009

    Science.gov (United States)

    Gillen, Andrew; Robe, Jonathan; Garrett, Daniel

    2011-01-01

    While the most visible measure of college costs is published tuition, because of financial aid, this "sticker price" does not necessarily reflect the costs that students and their families actually pay. To the extent that students and their families are concerned about what costs they will need to pay to cover tuition charges, the…

  13. State Tuition, Fees, and Financial Assistance Policies: For Public Colleges and Universities, 2010-11

    Science.gov (United States)

    Bell, Allison C.; Carnahan, Julie; L'Orange, Hans P.

    2011-01-01

    This report, "State Tuition, Fees, and Financial Assistance Policies for Public Colleges and Universities: 2010-11", examines the philosophies, policies, and procedures that influence decision-making regarding public college and university tuition, student fees, and student financial aid programs. This report also provides information…

  14. The First State Dream Act: In-State Resident Tuition and Immigration in Texas

    Science.gov (United States)

    Flores, Stella M.

    2010-01-01

    In 2001, Texas became the first state to pass an in-state resident tuition policy that benefits undocumented immigrant students, a majority of whom are of Latino/a origin. This analysis estimates the effect of the Texas in-state resident tuition policy on students likely to be undocumented. Using a differences-in-differences strategy and two…

  15. Perceptions of Parents on the Practice of Private Tuition in Public Learning Institutions in Kenya

    Science.gov (United States)

    Mwebi, Robert B.; Maithya, Redempta

    2016-01-01

    The practice of private tuition outside normal class hours is a phenomenon which has prevailed in Kenyan basic learning institutions despite the repeated ban by the government. The purpose of the study was to establish parental perceptions on extra tuition in public schools in Kenya. Descriptive survey design was used for the study. A total of 40…

  16. The More, the Better? Intensity of Involvement in Private Tuition and Examination Performance

    Science.gov (United States)

    Smyth, Emer

    2008-01-01

    Private tuition, or "shadow education", has become a prominent feature in many countries internationally. A number of studies have found that such tuition is associated with improved examination performance and enhanced access to tertiary education. However, these studies have generally not taken into account important attitudinal…

  17. Prevalence for Private Tuition among Parents, Teachers and Pupils in Public Primary Schools in Machakos County

    Science.gov (United States)

    Kirigwi, Lucy Wambui; Maithya, Redempta

    2016-01-01

    Private tuition refers to tutoring offered outside mainstream teaching. The study sought to establish the difference in prevalence for private tuition among parents, teachers and pupils in public primary schools in Machakos County. The study employed descriptive survey design. The target populations were all teachers, parents and pupils of public…

  18. Buying Your Way into College? Private Tuition and the Transition to Higher Education in Ireland

    Science.gov (United States)

    Smyth, Emer

    2009-01-01

    A number of countries, including Ireland, have experienced a recent growth in the prevalence of "shadow education", that is, paid private tuition outside the schooling system. Previous international studies have indicated that such tuition can enhance academic performance and facilitate access to tertiary education. However, such studies…

  19. Mother Tongue Tuition in Sweden--Curriculum Analysis and Classroom Experience

    Science.gov (United States)

    Reath Warren, Anne

    2013-01-01

    The model of Mother Tongue Tuition (MTT) which has developed in Sweden since the 1970's offers speakers of languages other than Swedish the opportunity to request tuition in their mother tongue, from kindergarten through to year 12. It is unique among the major immigrant-receiving countries of the world yet little is known about MTT and its…

  20. One-to-One Tuition in a Conservatoire: The Perceptions of Instrumental and Vocal Students

    Science.gov (United States)

    Gaunt, Helena

    2010-01-01

    This paper analyses the perceptions of 20 students in a conservatoire in the UK about one-to-one tuition, and forms part of research also investigating the perceptions of the students' teachers. Findings suggested that these students had significantly different experiences of one-to-one tuition in terms of frequency and length of lessons.…

  1. Employment-Based Tuition Assistance: Decisions and Checklists for Employers, Educators, and Unions.

    Science.gov (United States)

    Gold, Gerard G.

    This guide is intended to assist employers, educators, and union officials in understanding the rationale behind developing and implementing tuition assistance plans. Examined in the introductory section are the importance of tuition assistance programs in light of contemporary economic and labor market conditions. The first chapter outlines the…

  2. Determining a Relationship between Higher Education Financial Position and Tuition Discount Rates

    Science.gov (United States)

    Browning, Julianna

    2013-01-01

    Institutions have increased the practice of tuition discounting, that is, the strategic use of price discrimination. During the past 30 years, both the average percent discount given to students and the proportion of students receiving tuition breaks have increased. As this practice has increased, there are financial determinants and implications…

  3. In-State-Tuition for Unauthorized Residents: Teaching a Person to Fish

    Science.gov (United States)

    Dryden, Joe; Martinez, Cristina

    2014-01-01

    Illegal immigration has become one of the most important issues we face as a nation, and as greater attention is focused on the sociological and economic impact of illegal immigration, policies related to in-state-tuition for unauthorized residents are in a state of flux. Since 2005, the number of states offering in-state-tuition for unauthorized…

  4. Low-Income Engineering Students: Considering Financial Aid and Differential Tuition

    Science.gov (United States)

    George-Jackson, Casey E.; Rincon, Blanca; Martinez, Mariana G.

    2012-01-01

    This paper explores the relationship between tuition differentials and low-income students in Engineering fields at two public, research-intensive universities. Although current reports indicate the need for increased participation within the Science, Technology, Engineering, and Mathematics (STEM) fields, rising tuition prices at the university…

  5. Investigating the status of supplementary tuition in the teaching and learning of mathematics

    Directory of Open Access Journals (Sweden)

    David Mogari

    2009-09-01

    Full Text Available The study seeks to investigate the status of supplementary tuition in the teaching and learning of mathematics and mathematical literacy. The study followed a descriptive survey design involving the use of learner and teacher questionnaires. A convenient sample of mathematics and mathematical literacy teachers together with a stratified sample of their Grade 11 learners were drawn from a purposive sample of highperforming high schools in the East London district of the Eastern Cape, South Africa. The results show that supplementary tuition is popular, especially among girls, and it is in three forms (i.e. private tuition, vacation school and problem-solving classes: Problemsolving classes dominated by working on past/model examination papers is the most preferred; in some instances supplementary tuition is offered for a fee; it is not only confined to poor performing learners; and participation in supplementary tuition is influenced by a variety of factors.

  6. Methods and procedures of mathematic self-tuition process for technicians training

    Directory of Open Access Journals (Sweden)

    Martínez E. C.

    2013-07-01

    Full Text Available The paper describes the mathematic self-tuition process for technicians training. Once a theoretical framework was built up, the process of self-tuition in mathematics was modeled and introduced at experimental scale. The structure of the process is fully described together with the connections between subsystems and components. The methods and procedures of self-tuition are also described. The guiding principle is that designing a mathematic self-tuition process requires didactic procedures illustrating how professional technical problems may be contextualized for planning, organizing, performing and controlling the study of mathematics. The feasibility appraisal of the model proved that it favors the learning technical contents under the basis of strengthening a mathematic culture. Key words: self-tuition process, technicians´ training, self-control

  7. Res Publica objedinjajetsja s Sojuzom Otetshestva

    Index Scriptorium Estoniae

    2006-01-01

    Res Publica ja Isamaaliidu liitumisel tekib uus erakond - Eesti Eest!. Ida-Viru Isamaaliidu ja Res Publica esimeeste Hans Pindre, Vladislav Ponjatovski ning Narva Res Publica endise liidri Nikolai Golubevi arvamused

  8. Res Publica v respublike / Roman Gornev

    Index Scriptorium Estoniae

    Gornev, Roman

    2002-01-01

    Järg 29. november nr. 48 lk. 7. Res Publica - uue poliitika partei. Res Publica Ida-Virumaal, partei juhtfiguurid, Res Publica Kohtla-Järvel. Koalitsioonileping Keskerakonnaga viis konfliktini partei juhtkonnaga. Kohtla-Järve Res Publica kohaliku organisatsiooni konflikti partei juhtkonnaga kommenteerib Hants Hint

  9. Res Publica kogub uut hoogu / Andres Jalak

    Index Scriptorium Estoniae

    Jalak, Andres, 1953-

    2005-01-01

    Kommenteerides Res Publica senise esimehe ja endise peaministri Juhan Partsi ning uueks esimeheks valitud Taavi Veskimäe kõnet Res Publica üldkogul, väljendab Res Publica fraktsiooni aseesimees usku, et Res Publica juhtimisel suudetakse 2007. aasta parlamendivalimistel taastada tulevikku suunatud mõtlemisega valitsus

  10. Challenges of Tuition fee’s decision: Private Universities case in Kosovo

    Directory of Open Access Journals (Sweden)

    Besa Shahini

    2013-12-01

    Full Text Available This study assesses Challenges that Private Universities in Kosovo face when employing tuition fee strategies. Data are collected on May - June 2012 through in-depth interview and questioners with supervisors and students of three Private Universities in Kosovo. As of low purchasing power of students and overall economic crises in Kosovo, students are very sensitive to pricing strategies employed and according to fee they evaluate before and after -enrollment assessment. Students’ academic expectations are much higher relative to their low tuition requirements. In transition economies, employing tuition strategies that satisfy both Universities and students is a challenge for higher educational institutions.

  11. Fermi FT2 Spacecraft Pointing Files

    Data.gov (United States)

    National Aeronautics and Space Administration — This utility permits you to download the most current version of the spacecraft (FT2) file predicting the LAT's pointing for a given mission week. The FT2 file is a...

  12. College Cost and Time to Complete a Degree: Evidence from Tuition Discontinuities

    OpenAIRE

    Pietro Garibaldi; Francesco Giavazzi; Andrea Ichino; Enrico Rettore

    2007-01-01

    For many students throughout the world the time to obtain an academic degree extends beyond the normal completion time while college tuition is typically constant during the years of enrollment. In particular, it does not increase when a student remains in a program beyond the normal completion time. Using a Regression Discontinuity Design on data from Bocconi University in Italy, this paper shows that a tuition increase of 1,000 euro in the last year of studies would reduce the probability o...

  13. Demand for private tuition classes under the free education policy. Evidence based on Sri Lanka

    OpenAIRE

    Pallegedara, Asankha

    2011-01-01

    Private tuition classes are growing phenomenon in Sri Lanka especially among students who prepare for competitive national school qualifying examinations. It is one of major education issues under the free education policy in Sri Lanka. It can tarnish the real purpose of free education policy. In this paper, we examine the demand for private tuition classes in Sri Lanka by using two waves of Household Income and Expenditure Surveys (HIES) conducted by the Department of Census and Statistics (...

  14. Comparative Study of Parental Involvement and Private Tuition regarding Educational Attainment of Students

    OpenAIRE

    Malik Amer Atta; Shabnam Razzaq Khan; Shehla Sheikh; Fahmida Akbar

    2014-01-01

    This research work was focused on the “comparative study of parental involvement and private tuition regarding educational attainments of students at secondary school level”. A sample of 80 students of 10th class from ten different secondary schools was taken. To analyze the results t-test was used. In this comparison it was conducted that parental involvement turn out significant effect on student educational attainments as compared to private tuition. On the bases of results researcher has ...

  15. Factors affecting students’ attitude towards introduction of tuition fees for higher education in the Czech Republic

    Directory of Open Access Journals (Sweden)

    Martina Zámková

    2013-01-01

    Full Text Available Introduction of tuition fees has been much discussed in the Czech Republic over the recent years. Unfortunately, the current system of non-discriminate higher-education funding is no longer supportable, that is, provided that we do not want all universities to be evenly “mediocre”. A well configured tuition-fee system with low payments, suitably complemented by student loans covering not only the tuition fees but also the subsistence costs could be an acceptable vision of the future higher education. The obligation to pay for the study should also prevent from enrolment those applicants that only enter a university to avoid having to cater for themselves in real life. A survey was conducted to find out the views of Czech university students on the introduction of tuition fees and the possible methods of their payment. A subsequent analysis was made to see whether the introduction of tuition fees would aggravate students’ financial situation, whether they would be more motivated to complete the studies in due time, and whether they would be more concerned with the quality of teaching. The survey also analysed the relationship between a respondent’s view on the introduction of tuition fees and the current methods of financing the studies (accommodation, transport, meals, textbooks, …, the household income, and the gender. It also takes into account the attitude of respondents on the system of student loans proposed. In order to interpret the results correspondence and dependence analysis were used.

  16. BioMagResBank.

    NARCIS (Netherlands)

    Ulrich, E.L.; Akutsu, H.; Doreleijers, J.; Harano, Y.; Ioannidis, Y.E.; Lin, J.; Livny, M.; Mading, S.; Maziuk, D.; Miller, Z.; Nakatani, E.; Schulte, C.F.; Tolmie, D.E.; Wenger, R.K.; Yao, H.; Markley, J.L.

    2008-01-01

    The BioMagResBank (BMRB: www.bmrb.wisc.edu) is a repository for experimental and derived data gathered from nuclear magnetic resonance (NMR) spectroscopic studies of biological molecules. BMRB is a partner in the Worldwide Protein Data Bank (wwPDB). The BMRB archive consists of four main data

  17. Resúmenes Conferencias Magistrales

    Directory of Open Access Journals (Sweden)

    Editor Gabriel Vargas Arana

    2015-12-01

    Full Text Available En este artículo se pueden encontrar los resúmenes de las conferencias magistrales del III Congreso Latinoamericano de Plantas Medicinales, desarrollado del 12 al 14 de agosto de 2015 en la ciudad de Iquitos, Perú.

  18. Resúmenes Presentaciones Orales

    Directory of Open Access Journals (Sweden)

    Editor Gabriel Vargas Arana

    2015-12-01

    Full Text Available En este artículo se pueden encontrar los resúmenes de las presentaciones orales del III Congreso Latinoamericano de Plantas Medicinales, desarrollado del 12 al 14 de agosto de 2015 en la ciudad de Iquitos, Perú.

  19. SWiFT Software Quality Assurance Plan.

    Energy Technology Data Exchange (ETDEWEB)

    Berg, Jonathan Charles [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2016-01-01

    This document describes the software development practice areas and processes which contribute to the ability of SWiFT software developers to provide quality software. These processes are designed to satisfy the requirements set forth by the Sandia Software Quality Assurance Program (SSQAP). APPROVALS SWiFT Software Quality Assurance Plan (SAND2016-0765) approved by: Department Manager SWiFT Site Lead Dave Minster (6121) Date Jonathan White (6121) Date SWiFT Controls Engineer Jonathan Berg (6121) Date CHANGE HISTORY Issue Date Originator(s) Description A 2016/01/27 Jon Berg (06121) Initial release of the SWiFT Software Quality Assurance Plan

  20. Analyzing the Market for Shadow Education in Pakistan: Does Private Tuition Affect the Learning Gap between Private and Public Schools?

    OpenAIRE

    Bisma Haseeb Khan; Sahar Amjad Shaikh

    2013-01-01

    Over the past decade, Pakistan has seen the rapid growth of a third sector in education: shadow education. According to the Annual Survey of Education Report (2013), 34 percent of private school students and 17 percent of public school students undertake private tuition in Punjab. Anecdotal evidence suggests that private tuition has a positive impact on learning outcomes. Keeping this in view, it is possible that private tuition, rather than a difference inschooling quality, is driving the ob...

  1. Res Publica esitas avalduse kaposse / Virkko Lepassalu

    Index Scriptorium Estoniae

    Lepassalu, Virkko, 1971-

    2003-01-01

    Kaposse jõudis Res Publica avaldus, milles palutakse uurida erakonda seadusvastaselt anonüümselt sponsoreerima kutsuva kirja tagamaid. Vt. ka Äripäev 19. veebruar lk. 6 "Kapo ei alustanud Res Publica avalduse peale kriminaalmenetlust"

  2. Padenije Res Publica / Viktoria Jürmann

    Index Scriptorium Estoniae

    Jürmann, Viktoria

    2005-01-01

    Res Publica üks rajajatest, Rein Taagepera, lahkus parteist, süüdistades erakonda paremtsentristlikust maailmavaatest loobumises. Res Publica Riigikogu fraktsioon tahab avaldada umbusaldust haridus- ja teadusminister Mailis Repsile

  3. Rahvaliit likvideerib Res Publica veeuputust / Janno Reiljan

    Index Scriptorium Estoniae

    Reiljan, Janno, 1951-2018

    2005-01-01

    Ilmunud ka: Molodjozh Estonii 1. august lk. 5. Selgitused Res Publica esimehe Taavi Veskimägi artiklile 25. juuli Postimehes "Pärast meid tulgu või veeuputus". Res Publica ja Rahvaliidu poliitika võrdlus

  4. Miks Res Publica kaotas / Juhan Parts

    Index Scriptorium Estoniae

    Parts, Juhan, 1966-

    2004-01-01

    Ilmunud ka: Severnoje Poberezhje, 29. juuni 2004, lk. 2; Koit, 29. juuni 2004, lk. 6. Europarlamendi valimiste tulemused erakonnale Res Publica. Juhan Partsi kõne 26. juunil Pärnus toimunud Res Publica volikogul. Lühendatult

  5. Mida ootame Res Publica poliitikutelt? / Andreas Kaju

    Index Scriptorium Estoniae

    Kaju, Andreas

    2003-01-01

    Res Publica Juventus on piirkondadele saadetud küsitlustega otsinud vastuseid mitmetele probleemidele. Eesmärk Res Publica poliitilise käitumise raamide määramine. Tabel: Juventuse küsimused piirkondadele

  6. Higher education: free tuition vs. quotas vs. targeted vouchers

    Directory of Open Access Journals (Sweden)

    Eduardo de Carvalho Andrade

    2010-03-01

    Full Text Available This paper compares theoretically three alternative university systems: the current one adopted in Brazil, in which students who perform better in the entering exam obtain the right to attend the public university without paying the full tuition; a system of affirmative action quotas in public universities, to benefit low income students; and a targeted vouchers system that can be used either to pay private or public university tuiton. The comparison indicates that the last system leads to: (i a higher quality of the labor force; (ii a more efficient allocation of resources; and (iii a greater social mobility.Este trabalho compara, do ponto de vista teórico, três sistemas universitários alternativos: o atual adotado pelo Brasil, no qual os alunos das universidades públicas, que são praticamente gratuitas, são escolhidos através de um processo seletivo; um sistema de quotas nas universidades públicas para beneficiar estudantes de baixa renda; e um sistema de vouchers direcionados para estudantes de baixa renda que podem ser utilizados nas universidades privadas ou públicas. A comparação destes três sistemas indica que o último é o mais eficiente, pois gera: (i maior qualidade da mão de obra; (ii alocação mais eficiente dos recursos; e (iii maior mobilidade social.

  7. 10 teesi Res Publica valitsemisprogrammist aastani 2007

    Index Scriptorium Estoniae

    2004-01-01

    Ilmunud ka: Ottshjot narodu Estonii. Res Publica 2003, 2004, lk. 4-5, 8-9. Res Publica valitsemisprogrammi lubadustest ja täitmisest. Vt. lk. 8-9 Res Publica ministrite olulisemad tegevused 2004. aastal - lühiülevaate teevad Ken-Marti Vaher, Taavi Veskimägi, Marko Pomerants, Toivo Maimets

  8. The impact of tuition fees amount on mental health over time in British students.

    Science.gov (United States)

    Richardson, T; Elliott, P; Roberts, R

    2015-09-01

    Previous studies have shown a relationship between debt and mental health problems in students. This study aimed to examine the effect of differences in tuition fees amount on changes in mental health over time. A prospective cohort study followed 390 first-year British students who differed on their tuition fees level at 4 time points across their first 2 years at university. Participants completed measures of global mental health, depression, anxiety, stress, alcohol-related problems at up to four time points in their first two years at university. Mixed-factorial ANOVAs were used to assess the impact of tuition fees amount on changes in scores over time. There was no difference based on fees at Time 1 for anxiety, stress, depression and global mental health. At Time 2, those charged £0-2.9k or £3-4k improved while those charged £8-9k stayed the same. However, this trend reversed by Times 3 and 4. Undergraduates mental health is partially affected by the level of tuition fees; however, the recent increase in tuition fees does not appear to have had a lasting impact at present. © The Author 2015. Published by Oxford University Press on behalf of Faculty of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  9. Tuition Discounting: Institutional Aid Patterns at Public and Private Colleges and Universities. Trends in Higher Education Series

    Science.gov (United States)

    Baum, Sandy; Ma, Jennifer

    2010-01-01

    Recent data from the College Board's Annual Survey of Colleges reveal significant variation in institutional aid patterns among colleges and universities. The undergraduate tuition discount rate--the ratio of institutional grant aid to published tuition and fee charges--is higher at private institutions than at public institutions, but there are…

  10. Examining Admission Policy Change at a Private, Tuition-Dependent, Baccalaureate Institution in an Urban Setting: A Qualitative Case Study

    Science.gov (United States)

    Gage, Christopher B.

    2017-01-01

    Higher education in America is resilient; in the face of seemingly insurmountable challenges, higher education manages to weather the storm of change, pressure, doubt, and criticism. Consider the following challenges: shifting demographics, escalating tuition, decreased state funding, retention and graduation rates, flat tuition revenue,…

  11. Educational "When," "Where," and "How" Implications of In-State Resident Tuition Policies for Latino Undocumented Immigrants

    Science.gov (United States)

    Darolia, Rajeev; Potochnick, Stephanie

    2015-01-01

    This paper presents an analysis of the effects of in-state resident tuition (IRT) policies, which allow undocumented immigrants to pay in-state rather than out-of state tuition, on when and where undocumented immigrant students enroll, and how they finance their education. We identify effects based on differences in pre- and post-policy outcomes…

  12. The Changing Landscape of Tuition and Enrollment in American Public Higher Education

    Directory of Open Access Journals (Sweden)

    Steven W. Hemelt

    2016-04-01

    Full Text Available The costs of public higher education have risen dramatically in recent years, causing anger among students and concern among policymakers worried about falling college completion rates. In this paper, we explore how public tuition costs affect postsecondary enrollment choices. We examine changes over time in the enrollment decisions of students in states where tuition and fees at public four-year institutions increased rapidly, compared with changes for observationally similar students in states with more modest tuition increases. Using student-level data on twelfth graders in 1992 and 2004 linked to institution-level data, we find a relative decline in the likelihood of attending an in-state public four-year institution among high school graduates from states where public tuition costs increased substantially over this period. Students in states where public tuition increased the most were considerably more likely to enroll in a public two-year college than their counterparts in states that adopted more modest increases. We explore heterogeneity in this pattern of substitution between institutions of varying selectivity and control and for students in policy-relevant socio-demographic subgroups, including those in different parts of the twelfth-grade achievement distribution. Generally, large tuition increases at public four-year colleges have weakened the propensity of high school graduates to enroll in such institutions in their state, and increased their likelihood of enrollment in less prestigious in-state public colleges, out-of-state public institutions, or private universities. These effects are most pronounced among students from families of low socioeconomic status, and nonelite students who perform below the 90th percentile on twelfth-grade math tests.

  13. Teine Res Musica ilmunud / Jaan Ross

    Index Scriptorium Estoniae

    Ross, Jaan, 1957-

    2010-01-01

    Artiklikogumikust: Res musica [2] : Eesti Muusikateaduse Seltsi ja Eesti Muusika- ja Teatriakadeemia muusikateaduse osakonna aastaraamat / peatoimetaja Urve Lippus. Tallinn : Eesti Muusika- ja Teatriakadeemia, 2010

  14. The Relationship of Institutional Tuition Discounts with Enrollment at Private, Not-for-Profit Institutions

    Science.gov (United States)

    Lassila, Nathan E.

    2010-01-01

    Empirical studies exploring the impact of student aid on postsecondary enrollment often stop short of the specific examination of institutional tuition discounting. This research uses separate empirical ordinary least squares (OLS) regression models to examine three questions using public choice theory, positing that enrollment decisions may be…

  15. The Incidence of the Tuition-Free High School Program in Japan

    Science.gov (United States)

    Hori, Masahiro; Shimizutani, Satoshi

    2018-01-01

    This paper examines the effect of a tuition-free high school program launched in FY2010 in Japan on the high school enrollment rate and household spending. We have some interesting findings. First, the program contributed to improvement in the high school enrollment rate for poorer households. Second, the program stimulated household spending…

  16. Who Gets the Credit? Who Pays the Consequences? The Illinois Tuition Tax Credit. Special Report.

    Science.gov (United States)

    Pathak, Arohi; Keenan, Nancy

    In 1999, Illinois enacted a tuition tax credit program. Tax credit supporters suggest tax credits help low-income students. However, opponents argue that they disproportionately benefit higher-income families whose children are already attending private schools and may decrease already limited resources available to public schools. New data from…

  17. Deferred and Income-Contingent Tuition Fees: An Empirical Assessment Using Belgian, German and UK Data

    Science.gov (United States)

    Vandenberghe, V.; Debande, O.

    2007-01-01

    This paper is a numerical exploration of the following. Assume, in the European Union context, that decision-makers want to spend more on higher education via higher tuition fees, but also want payments to be deferred and income-contingent. There are several possible ways to achieve this. First, ask graduates to repay a fixed amount each year if…

  18. The Evolution of Student Activism and Its Influence on Tuition Fees in South Korean Universities

    Science.gov (United States)

    Shin, Jung Cheol; Kim, Hoon-Ho; Choi, Hong-Sam

    2014-01-01

    This article briefly overviews the student movement working for political democratisation during the authoritarian governments in South Korea. The article focuses on how student activism has changed as a reflection of political developments from the dictatorship through to the civilian democratic governments. Further, it analyses how tuition-fee…

  19. The Adoption of Prepaid Tuition and Savings Plans in the American States: An Event History Analysis

    Science.gov (United States)

    Doyle, William R.; McLendon, Michael K.; Hearn, James C.

    2010-01-01

    The past two decades have been a period of far-reaching policy experimentation in state financing of higher education. Between 1986 and 1999, 21 states adopted prepaid college tuition plans. Thirty-one states adopted some form of college savings plan. Both kinds of policies were designed to enhance the affordability of higher education during a…

  20. Tuition Pricing and Aid Strategies: A Practical Approach. AIR 1994 Annual Forum Paper.

    Science.gov (United States)

    Fine, Paul L.

    This paper examines the applicability of net tuition revenue models for a highly selective, elite priced, private research university in the southern U.S. Pricing and aid strategies for this university seem to be driven by intuitive assumptions about the economy, market forces, needs-blind admissions, student satisfaction, net price…

  1. Assessing Tuition and Student Aid Strategies: Using Price-Response Measures to Simulate Pricing Alternatives.

    Science.gov (United States)

    St. John, Edward P.

    1994-01-01

    A study used price-response measures from recent national studies to assess college and university pricing (tuition and student aid) alternatives in diverse institutional settings. It is concluded that such analyses are feasible. Analysis indicated limits to "Robin Hood" pricing patterns are predominant in private colleges. Consideration…

  2. State Dream Acts: The Effect of In-State Resident Tuition Policies and Undocumented Latino Students

    Science.gov (United States)

    Flores, Stella M.

    2010-01-01

    This study examines the effect of in-state resident tuition legislation across the United States on the college enrollment odds of individuals likely to be undocumented Latino immigrants. The study employs a differences-indifferences strategy using data from the Current Population Survey's Merged Outgoing Rotation Groups. Foreign-born noncitizen…

  3. Tax justice of the reform of higher education: tuition fees or tax relief?

    Directory of Open Access Journals (Sweden)

    Pavel Semerád

    2012-01-01

    Full Text Available This paper deals with the current reform of higher education which is now being discussed in the Czech Republic. The Government and the Ministry of Education, Youth and Sports propose a tuition fee for students at universities but there is still no clear concept of it. University leaders and students are against the tuition fee because of their fear of getting into debt during their study. The aim of this paper is to show an alternative way of funding higher education without tuition fee loans and from the point of view of tax justice. According to the concept of horizontal justice (Mankiw, 1999 taxpayers should pay taxes at the same rate, but it does not work this way. The result of research is that changes in Act 586/1992 Coll., on income tax and in Act 117/1995 Coll., on state social welfare are required. Abolition of tax relief is proposed where discrimination against other taxpayers and groups of students could occur. By abolition of tax relief for a student and tax relief for a dependent child the amounts of 4,020 CZK and 13,404 CZK respectively could be saved. Changes in legislation could be politically more acceptable than the tuition fee. The solution could also lead to simplification for taxpayers. The target should be equal access to higher education for all students.

  4. Florida's Prepaid College Tuition Program: Marketing a Pre-Need Service.

    Science.gov (United States)

    Gauff, Joseph F., Jr.

    1994-01-01

    A discussion of Florida's college tuition prepayment program describes the plan and its options and examines its marketing implications as a preneed service. It is concluded that the program makes saving for college easy, economical, and completely safe but requires rethinking of conventional marketing strategies and mix. (MSE)

  5. Improving Quality: How Leaders Advance Student Engagement at Private, Tuition-Driven Institutions

    Science.gov (United States)

    Sluis, Kimberly A.

    2017-01-01

    Students and families, lawmakers, and the general public have become increasingly concerned about the quality of U.S. higher education. Given the competitive higher education landscape, private, tuition-driven colleges and universities are particularly vulnerable to concerns about quality. This study investigates how faculty and administrative…

  6. One-to-One Tuition in a Conservatoire: The Perceptions of Instrumental and Vocal Teachers

    Science.gov (United States)

    Gaunt, Helena

    2008-01-01

    One-to-one instrumental/vocal tuition forms a core part of the professional education offered to undergraduate and postgraduate music students in a conservatoire. However, whilst anecdotal evidence is plentiful, there is little research underpinning its practices. This article provides an analysis of the perceptions of 20 principal study teachers…

  7. Hope, Opportunity, and Access: The In-State Tuition Debate in North Carolina

    Science.gov (United States)

    Sanders, Marla S.

    2010-01-01

    This qualitative case study explores the political debate that surrounded North Carolina's House Bill 1183, also known as Access to Higher Education and A Better Economic Future. This bill would have made undocumented students eligible for in-state tuition at North Carolina's colleges and universities. This article discusses the political debate,…

  8. Elasticity of Demand for Tuition Fees at an Institution of Higher Education

    Science.gov (United States)

    Langelett, George; Chang, Kuo-Liang; Ola' Akinfenwa, Samson; Jorgensen, Nicholas; Bhattarai, Kopila

    2015-01-01

    Using a conjoint survey of 161 students at South Dakota State University (SDSU), we mapped a probability-of-enrolment curve for SDSU students, consistent with demand theory. A quasi-demand curve was created from the conditional-logit model. This study shows that along with the price of tuition fees, distance from home, availability of majors, and…

  9. Didactic friction – challenges and reflections n interlinking PBL and discipline-specific tuition practices

    DEFF Research Database (Denmark)

    Bejder, Anne Kirkegaard; Larsen, Gunvor Riber; Wind, Simon

    2017-01-01

    This is a discussion paper that is based on the didactics reflections of three junior academics at the Architecture and Urban Design (A&UD) programme at Aalborg University. The discussion is moored in two narratives representing two typical student tuition situations. Unfolding two touch points...

  10. Res Publica otsib kandepinda / Mirko Ojakivi

    Index Scriptorium Estoniae

    Ojakivi, Mirko

    2004-01-01

    Res Publica peasekretäri Ott Lumi sõnul on erakond teinud tõsised järeldused Euroopa Parlamendi valimiste tulemusest. Res Publica parlamendifraktsiooni väljasõidul pidas kriitilise kõne erakonna esimees Juhan Parts

  11. Res Publica soolo rikkus tavasid / Kai Kalamees

    Index Scriptorium Estoniae

    Kalamees, Kai

    2005-01-01

    Riigikogu aseesimeheks valiti Res Publica liige Taavi Veskimägi, nüüd on Riigikogu juhatuses kaks ühe partei liiget. Riigikogu aseesimeheks tagasi valitud Toomas Vareki hinnangul näitab see samm nii Res Publica kogenematust kui ka Eesti poliitilise kultuuri kehva taset

  12. Kerr geometry in f(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Bejarano, Cecilia; Guzman, Maria Jose [Instituto de Astronomia y Fisica del Espacio (IAFE, CONICET-UBA), Buenos Aires (Argentina); Ferraro, Rafael [Instituto de Astronomia y Fisica del Espacio (IAFE, CONICET-UBA), Buenos Aires (Argentina); Universidad de Buenos Aires, Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Buenos Aires (Argentina)

    2015-02-01

    Null tetrads are shown to be a valuable tool in teleparallel theories of modified gravity. We use them to prove that Kerr geometry remains a solution for a wide family of f(T) theories of gravity. (orig.)

  13. The Issue of Private Tuition: An Analysis of the Practice in Mauritius and Selected South-east Asian Countries

    Science.gov (United States)

    Foondun, A. Raffick

    2002-11-01

    Private tuition is an issue of growing concern and is practised in both developed and developing countries. Although it has certain positive effects, it imposes a considerable financial burden on parents and often gives rise to abuses. The present study, which focuses on the primary level, addresses a number of questions, such as the extent of the practice, its implications, the various forms that it takes, attitudes towards it, why children take private tuition, why teachers provide it, and policies to deal with the issue. The discussion ends with a plea for more research on private tuition in order to provide a basis for policies to address the problem.

  14. Isamaaliidu ühinemisjutt ajas Res Publica keema / Toomas Sildam

    Index Scriptorium Estoniae

    Sildam, Toomas, 1961-

    2005-01-01

    Ilmunud ka: Postimees : na russkom jazõke 14. nov., lk 3. Isamaaliidu esimehe Tõnis Lukase ettepanekut Isamaaliidu ja Res Publica ühinemiseks pooldavad ka Res Publica eestseisuse liikmed Juhan Parts ja Tõnis Palts, kuid Res Publica esimehe Taavi Veskimäe kinnitusel läheb Res Publica 2007. aasta parlamendivalimistele vastu iseseisvalt. Lisa: Isamaaliit ja Res Publica

  15. Sandia SWiFT Wind Turbine Manual.

    Energy Technology Data Exchange (ETDEWEB)

    White, Jonathan; LeBlanc, Bruce Philip; Berg, Jonathan Charles; Bryant, Joshua; Johnson, Wesley D.; Paquette, Joshua

    2016-01-01

    The Scaled Wind Farm Technology (SWiFT) facility, operated by Sandia National Laboratories for the U.S. Department of Energy's Wind and Water Power Program, is a wind energy research site with multiple wind turbines scaled for the experimental study of wake dynamics, advanced rotor development, turbine control, and advanced sensing for production-scale wind farms. The SWiFT site currently includes three variable-speed, pitch-regulated, three-bladed wind turbines. The six volumes of this manual provide a detailed description of the SWiFT wind turbines, including their operation and user interfaces, electrical and mechanical systems, assembly and commissioning procedures, and safety systems. Further dissemination only as authorized to U.S. Government agencies and their contractors; other requests shall be approved by the originating facility or higher DOE programmatic authority. 111 UNCLASSIFIED UNLIMITED RELEASE Sandia SWiFT Wind Turbine Manual (SAND2016-0746 ) approved by: Department Manager SWiFT Site Lead Dave Minster (6121) Date Jonathan White (6121) Date SWiFT Site Supervisor Dave Mitchell (6121) Date Note: Document revision logs are found after the title page of each volume of this manual. iv

  16. Design note of an air-cooled 2 ft x 2 ft x 10. 5 ft long muon spoiler

    Energy Technology Data Exchange (ETDEWEB)

    Visser, A.; Pathiyil, J.

    1988-01-06

    This note describes the construction of a muon spoiler (magnetized steel assembly) with a cross section of 2 ft by 2 ft and a length of 10.5 ft. Two such spoilers are operated in series at an average field of about 15 kGauss, from one 100 ADC, 40 V power supply. The purpose of the spoilers is to prevent muons from easily escaping beyond the muon laboratory experimental area by bending them down so that they have to pass through more earth. The spoilers reduce the muon dose rate beyond the experimental area by about a factor of 15 to 20. These types of spoilers are not precision devices. They were inexpensive to build from scrap materials using rough flame cutting methods. It took about 14 days to fabricate them.

  17. Tuition reduction is the key factor determining tax burden of graduate students under the Tax Cuts and Job Act.

    Science.gov (United States)

    Lawston, Patricia M; Parker, Michael T

    2017-01-01

    Background : The proposed Tax Cuts and Jobs Act (H.R.1) has stirred significant public debate on the future of American economics.  While supporters of the plan have championed it as a necessity for economic revitalization, detractors have pointed out areas of serious concern, particularly for low- and middle-income Americans.  One particularly alarming facet of the plan is the radical change to education finance programs and taxation of students in higher education.  Methods :  By analyzing actual income and tuition of a public and a private university student, as well as the 'average' graduate student, we investigated the effect of both the House and Senate versions of H.R. 1 on taxation of students of various family structures.  Results :  Our findings indicate that taxable tuition would be the greatest contributor to graduate student tax burden across all four categories of filing status.  However, when tuition reduction is upheld or a student is on sustaining fees rather than full tuition, graduate students would realize decreases in taxation. Conclusions :  Overall, we conclude that removal of tuition reduction would result in enormous tax burdens for graduate students and their families and that these effects are dependent not only on the status of the student in their degree program but also on their tuition and stipend, and therefore the institution they attend.

  18. Tuition reduction is the key factor determining tax burden of graduate students under the Tax Cuts and Job Act

    Science.gov (United States)

    Lawston, Patricia M.; Parker, Michael T.

    2018-01-01

    Background: The proposed Tax Cuts and Jobs Act (H.R.1) has stirred significant public debate on the future of American economics.  While supporters of the plan have championed it as a necessity for economic revitalization, detractors have pointed out areas of serious concern, particularly for low- and middle-income Americans.  One particularly alarming facet of the plan is the radical change to education finance programs and taxation of students in higher education.  Methods:  By analyzing actual income and tuition of a public and a private university student, as well as the ‘average’ graduate student, we investigated the effect of both the House and Senate versions of H.R. 1 on taxation of students of various family structures.  Results:  Our findings indicate that taxable tuition would be the greatest contributor to graduate student tax burden across all four categories of filing status.  However, when tuition reduction is upheld or a student is on sustaining fees rather than full tuition, graduate students would realize decreases in taxation. Conclusions:  Overall, we conclude that removal of tuition reduction would result in enormous tax burdens for graduate students and their families and that these effects are dependent not only on the status of the student in their degree program but also on their tuition and stipend, and therefore the institution they attend. PMID:29487740

  19. NIR-FT Raman, FT-IR and surface-enhanced Raman scattering and ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Chemical Sciences; Volume 122; Issue 4. NIR-FT Raman, FT-IR and surface-enhanced Raman scattering and DFT based theoretical studies on the adsorption behaviour of (S)-Phenylsuccinic acid on silver nanoparticles. D Sajan V Bena Jothy Thomas Kuruvilla I Hubert Joe. Full Papers Volume ...

  20. Detection of starch adulteration in onion powder by FT-NIR and FT-IR spectroscopy

    Science.gov (United States)

    Adulteration of onion powder with cornstarch was identified by Fourier transform near-infrared (FT-NIR) and Fourier transform infrared (FT-IR) spectroscopy. The reflectance spectra of 180 pure and adulterated samples (1–35 wt% starch) were collected and preprocessed to generate calibration and predi...

  1. Kui piiluda Res Publica hinge / Alar Oppar

    Index Scriptorium Estoniae

    Oppar, Alar

    2005-01-01

    Autori sõnul soovib Res Publica Reformierakonna koalitsioonist eemaldada, et viia ellu oma projektid. Selleks on vaja lõplikult erastada riigi varad ja avalikud teenused ning viia avalik võim miinimumini

  2. The Effects of the Tax Deduction for Postsecondary Tuition: Implications for Structuring Tax-Based Aid

    OpenAIRE

    Caroline M. Hoxby; George B. Bulman

    2015-01-01

    The federal tax deduction for tuition potentially increases investments in postsecondary education at minimal administrative cost. We assess whether it actually does this using regression discontinuity methods on the income cutoffs that govern eligibility for the deduction. Although many eligible households take nearly the maximum deduction allowed, we find no evidence that it affects attending college (at all), attending full- versus part-time, attending four- versus two-year college, the re...

  3. Biochemical applications of FT-IR spectroscopy

    NARCIS (Netherlands)

    Pistorius, A.M.A.

    1996-01-01

    This thesis describes the use of (FT-)IR spectroscopy in general biochemical research. In chapter 3, IR spectroscopy is used in the quantitation of residual detergent after reconstitution of an integral membrane protein in a pre-defined lipid matrix. This chapter discusses the choice of the

  4. FT 3 Flight Test Cards for Export

    Science.gov (United States)

    Marston, Michael L.

    2015-01-01

    These flight test cards will be made available to stakeholders who participated in FT3. NASA entered into the relationship with our stakeholders, including the FAA, to develop requirements that will lead to routine flights of unmanned aircraft systems flying in the national airspace system.

  5. Preparing the next generation of health care providers: A description and comparison of nurse practitioner and medical student tuition in 2015.

    Science.gov (United States)

    Riley, Lydia; Litsch, Tyler; Cook, Michelle L

    2016-01-01

    The purpose of this study was twofold: to describe the average cost of nurse practitioner (NP) tuition based on degree program, program type, and geography; and to compare the cost of NP tuition to medical school tuition. A listing of all NP degree granting universities was obtained from the American Association of Colleges of Nursing during the fall of 2014, and tuition data were obtained from university websites. Medical school tuition data were obtained online during the fall of 2014 from the American Association of Medical Colleges. Average 1-year tuition rates were calculated for NP programs and medical schools and compared across private and public institutions. Average 1-year resident tuition for public university NP programs ranges between $8671 and $11,077 based on type of program. The cost of 1-year NP program tuition at the master's and the doctoral level is much lower than the cost of 1-year medical school tuition at both private and public universities. NPs can perform many of the same services as physicians in the primary care setting with comparable outcomes, yet the cost of educating NPs is much lower. NPs are a cost-effective solution to the healthcare workforce shortage. ©2015 American Association of Nurse Practitioners.

  6. Energy profile, spectroscopic (FT-IR, FT-Raman and FT-NMR) and DFT studies of 4-bromoisophthalic acid

    Science.gov (United States)

    Arjunan, V.; Thirunarayanan, S.; Mohan, S.

    2018-04-01

    The stable conformer of 4-bromoisophthalic acid (BIPA) has been identified by potential energy profile analysis. All the structural parameters of 4-bromoisophthalic acid are determined by B3LYP method with 6-311++G**, 6-31G** and cc-pVTZ basis sets. The fundamental vibrations are analysed with the use of FT-IR (4000-400 cm-1) and FT-Raman (4000-100 cm-1) spectra. The harmonic vibrational frequencies are theoretically calculated and compared with experimental FTIR and FT-Raman frequencies. The 1H and 13C NMR spectra have been analysed and compared with theoretical 1H and 13C NMR chemical shifts calculated by gauge independent atomic orbital (GIAO) method. The electronic properties, such as HOMO (highest occupied molecular orbital) and LUMO (lowest unoccupied molecular orbital) energies are determined by B3LYP/cc-pVTZ method. The electron density distribution and site of chemical reactivity of BIPA molecule have been obtained by mapping electron density isosurface with molecular electrostatic potential (MEP). Stability of the molecules arising from hyperconjugative interactions, charge delocalizations have been analysed by using natural bond orbital (NBO) analysis. The thermodynamic properties and atomic natural charges of the compound are analysed and the reactive sites of the molecule are identified. The global and local reactivity descriptors are evaluated to analyse the chemical reactivity and site selectivity of molecule through Fukui functions.

  7. An FT-Raman, FT-IR, and Quantum Chemical Investigation of Stanozolol and Oxandrolone

    Directory of Open Access Journals (Sweden)

    Tibebe Lemma

    2017-12-01

    Full Text Available We have studied the Fourier Transform Infrared (FT-IR and the Fourier transform Raman (FT-Raman spectra of stanozolol and oxandrolone, and we have performed quantum chemical calculations based on the density functional theory (DFT with a B3LYP/6-31G (d, p level of theory. The FT-IR and FT-Raman spectra were collected in a solid phase. The consistency between the calculated and experimental FT-IR and FT-Raman data indicates that the B3LYP/6-31G (d, p can generate reliable geometry and related properties of the title compounds. Selected experimental bands were assigned and characterized on the basis of the scaled theoretical wavenumbers by their total energy distribution. The good agreement between the experimental and theoretical spectra allowed positive assignment of the observed vibrational absorption bands. Finally, the calculation results were applied to simulate the Raman and IR spectra of the title compounds, which show agreement with the observed spectra.

  8. Detection of metanil yellow contamination in turmeric using FT-Raman and FT-IR spectroscopy

    Science.gov (United States)

    Dhakal, Sagar; Chao, Kuanglin; Qin, Jianwei; Kim, Moon; Schmidt, Walter; Chan, Dian

    2016-05-01

    Turmeric is well known for its medicinal value and is often used in Asian cuisine. Economically motivated contamination of turmeric by chemicals such as metanil yellow has been repeatedly reported. Although traditional technologies can detect such contaminants in food, high operational costs and operational complexities have limited their use to the laboratory. This study used Fourier Transform Raman Spectroscopy (FT-Raman) and Fourier Transform - Infrared Spectroscopy (FT-IR) to identify metanil yellow contamination in turmeric powder. Mixtures of metanil yellow in turmeric were prepared at concentrations of 30%, 25%, 20%, 15%, 10%, 5%, 1% and 0.01% (w/w). The FT-Raman and FT-IR spectral signal of pure turmeric powder, pure metanil yellow powder and the 8 sample mixtures were obtained and analyzed independently to identify metanil yellow contamination in turmeric. The results show that FT-Raman spectroscopy and FT-IR spectroscopy can detect metanil yellow mixed with turmeric at concentrations as low as 1% and 5%, respectively, and may be useful for non-destructive detection of adulterated turmeric powder.

  9. Holographic Polytropic f(T Gravity Models

    Directory of Open Access Journals (Sweden)

    Surajit Chattopadhyay

    2015-01-01

    Full Text Available The present paper reports a study on the cosmological consequences arising from reconstructing f(T gravity through new holographic polytropic dark energy. We assume two approaches, namely, a particular form of Hubble parameter H and a solution for f(T. We obtain the deceleration parameter and effective equation of state, as well as torsion equation of state parameters from total density and pressure in both cases. It is interesting to mention here that the deceleration and torsion equation of state represent transition from deceleration to acceleration phase. We study the statefinder parameters under both approaches which result in the fact that statefinder trajectories are found to attain ΛCDM point. The comparison with observational data represents consistent results. Also, we discuss the stability of reconstructed models through squared speed of sound which represents stability in late times.

  10. Advances in handheld FT-IR instrumentation

    Science.gov (United States)

    Arnó, Josep; Cardillo, Len; Judge, Kevin; Frayer, Maxim; Frunzi, Michael; Hetherington, Paul; Levy, Dustin; Oberndorfer, Kyle; Perec, Walter; Sauer, Terry; Stein, John; Zuidema, Eric

    2012-06-01

    FT-IR spectroscopy is the technology of choice to identify solid and liquid phase unknown samples. The challenges of ConOps (Concepts of Operation) in emergency response and military field applications require a significant redesign of the stationary FT-IR bench-top instruments typically used in laboratories. Specifically, field portable units require high levels of resistance against mechanical shock and chemical attack, ease of use in restrictive gear, quick and easy interpretation of results, and reduced size. In the last 20 years, FT-IR instruments have been re-engineered to fit in small suitcases for field portable use and recently further miniaturized for handheld operation. This article introduces the advances resulting from a project designed to overcome the challenges associated with miniaturizing FT-IR instruments. The project team developed a disturbance-corrected permanently aligned cube corner interferometer for improved robustness and optimized opto-mechanical design to maximize optical throughput and signal-to-noise ratios. Thermal management and heat flow were thoroughly modeled and studied to isolate sensitive components from heat sources and provide the widest temperature operation range. Similarly, extensive research on mechanical designs and compensation techniques to protect against shock and vibration will be discussed. A user interface was carefully created for military and emergency response applications to provide actionable information in a visual, intuitive format. Similar to the HazMatID family of products, state-of-the-art algorithms were used to quickly identify the chemical composition of complex samples based on the spectral information. This article includes an overview of the design considerations, tests results, and performance validation of the mechanical ruggedness, spectral, and thermal performance.

  11. The model FT-3106 nuclide activity meter

    International Nuclear Information System (INIS)

    Yang Jianming

    1999-01-01

    The author describes the important role of the nuclide activity meter in scientific research, production, medicine and health and its general situation of development in the country. The working principle, structure and feature of the new model FT-3106 nuclide activity meter are presented through description of the measures to improve the properties and quality in research and design. Finally the situation of its popularization and application are given

  12. College Affordability and the Emergence of Progressive Tuition Models: Are New Financial Aid Policies at Major Public Universities Working? Research and Occasional Paper Series: CSHE.7.16

    Science.gov (United States)

    Lapid, Patrick A.; Douglass, John Aubrey

    2016-01-01

    In an era of significant disinvestment in public higher education by state governments, many public universities are moving toward a "progressive tuition model" that attempts to invest approximately one-third of tuition income into institutional financial aid for lower-income and middle-class students. The objective is to mitigate the…

  13. Tere tulemast, Res Publica 2? / Tõnis Kõiv

    Index Scriptorium Estoniae

    Kõiv, Tõnis, 1970-

    2006-01-01

    Ilmunud ka: Järva Teataja 18. apr. lk. 2, Vooremaa 20. apr. lk. 2, Meie Maa 21. apr. lk. 2, Paremad Uudised nr. 2 lk. 3. Autor loodab, et Res Publica ja Isamaaliidu ühinemisel tekkiv partei Eesti Eest! saab Reformierakonna koostööpartneriks

  14. Constraining f(T) teleparallel gravity by big bang nucleosynthesis. f(T) cosmology and BBN

    Energy Technology Data Exchange (ETDEWEB)

    Capozziello, S. [Universita di Napoli ' ' Federico II' ' , Complesso Universitario di Monte Sant' Angelo, Dipartimento di Fisica ' ' E. Pancini' ' , Napoli (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Napoli (Italy); Gran Sasso Science Institute, L' Aquila (Italy); Lambiase, G. [University of Salerno, Dipartimento di Fisica E.R. Cainaiello, Fisciano (Italy); INFN, Gruppo Collegato di Salerno, Sezione di Napoli, Fisciano (Italy); Saridakis, E.N. [National Technical University of Athens, Department of Physics, Athens (Greece); Baylor University, CASPER, Physics Department, Waco, TX (United States)

    2017-09-15

    We use Big Bang Nucleosynthesis (BBN) observational data on the primordial abundance of light elements to constrain f(T) gravity. The three most studied viable f(T) models, namely the power law, the exponential and the square-root exponential are considered, and the BBN bounds are adopted in order to extract constraints on their free parameters. For the power-law model, we find that the constraints are in agreement with those obtained using late-time cosmological data. For the exponential and the square-root exponential models, we show that for reliable regions of parameters space they always satisfy the BBN bounds. We conclude that viable f(T) models can successfully satisfy the BBN constraints. (orig.)

  15. Constraining f(T) teleparallel gravity by big bang nucleosynthesis. f(T) cosmology and BBN

    International Nuclear Information System (INIS)

    Capozziello, S.; Lambiase, G.; Saridakis, E.N.

    2017-01-01

    We use Big Bang Nucleosynthesis (BBN) observational data on the primordial abundance of light elements to constrain f(T) gravity. The three most studied viable f(T) models, namely the power law, the exponential and the square-root exponential are considered, and the BBN bounds are adopted in order to extract constraints on their free parameters. For the power-law model, we find that the constraints are in agreement with those obtained using late-time cosmological data. For the exponential and the square-root exponential models, we show that for reliable regions of parameters space they always satisfy the BBN bounds. We conclude that viable f(T) models can successfully satisfy the BBN constraints. (orig.)

  16. Development of modified FT (MFT) process

    Energy Technology Data Exchange (ETDEWEB)

    Jinglai Zhou; Zhixin Zhang; Wenjie Shen [Institute of Coal Chemistry, Taiyuan (China)] [and others

    1995-12-31

    Two-Stage Modified FT (MFT) process has been developed for producing high-octane gasoline from coal-based syngas. The main R&D are focused on the development of catalysts and technologies process. Duration tests were finished in the single-tube reactor, pilot plant (100T/Y), and industrial demonstration plant (2000T/Y). A series of satisfactory results has been obtained in terms of operating reliability of equipments, performance of catalysts, purification of coal - based syngas, optimum operating conditions, properties of gasoline and economics etc. Further scaling - up commercial plant is being considered.

  17. Res Publica meelitab valla- ja linnajuhte / Henrik Roonemaa

    Index Scriptorium Estoniae

    Roonemaa, Henrik

    2001-01-01

    Valitsusliidu regionaalpoliitikas pettunud 30 omavalitsusjuhti on astunud ühenduse Res Publica liikmeks, lootes selle põhjal tekkiva partei abil kohaliku ja riigivõimu taas omavahel suhtlema panna. Vt. samas Res Publica liikmetest omavalitsusjuhid

  18. Parts ei soovi Res Publica esimehe ametit / Tuuli Koch

    Index Scriptorium Estoniae

    Koch, Tuuli

    2005-01-01

    Kõige tõenäolisem kandidaat Res Publica juhi kohale on Taavi Veskimägi, aseesimeesteks kandideerivad Marko Mihkelson ja Henn Pärn. Res Publica fraktsiooni koosolekul leidis Mihhail Lotman, et erakond võiks olla feminiinsem

  19. The purifying bridge of Res Publica / Rein Taagepera

    Index Scriptorium Estoniae

    Taagepera, Rein, 1933-

    2004-01-01

    Res Publica edust Eesti poliitilisel maastikul. Autor käsitleb Res Publicat kui puhastava toimega ja silla funktsiooni täitvat parteid, mis üritab siduda tervikuks Keskerakonna ja Reformierakonna seisukohad

  20. SWiFT site atmospheric characterization

    Energy Technology Data Exchange (ETDEWEB)

    Kelley, Christopher Lee [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Ennis, Brandon Lee [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2016-01-01

    Historical meteorological tall tower data are analyzed from the Texas Tech University 200 m tower to characterize the atmospheric trends of the Scaled Wind Farm Technologies (SWiFT) site. In this report the data are analyzed to reveal bulk atmospheric trends, temporal trends and correlations of atmospheric variables. Through this analysis for the SWiFT turbines the site International Electrotechnical Commission (IEC) classification is determined to be class III-C. Averages and distributions of atmospheric variables are shown, revealing large fluctuations and the importance of understanding the actual site trends as opposed to simply using averages. The site is significantly directional with the average wind speed from the south, and particularly so in summer and fall. Site temporal trends are analyzed from both seasonal (time of the year) to daily (hour of the day) perspectives. Atmospheric stability is seen to vary most with time of day and less with time of year. Turbulence intensity is highly correlated with stability, and typical daytime unstable conditions see double the level of turbulence intensity versus that experienced during the average stable night. Shear, veer and atmospheric stability correlations are shown, where shear and veer are both highest for stable atmospheric conditions. An analysis of the Texas Tech University tower anemometer measurements is performed which reveals the extent of the tower shadow effects and sonic tilt misalignment.

  1. Theology and Rhetoric: Redefining the relationship between Res ...

    African Journals Online (AJOL)

    linguistic form, verba) and theology (content, res) in scholarship's history (part I), a theoretical discussion attempts to further undergird the third model according to which verba produce res (part II). As a first step, the inseparable intertwinement of res ...

  2. Juhan Parts soovib Res Publica tagasi tippu viia / Toomas Sildam

    Index Scriptorium Estoniae

    Sildam, Toomas, 1961-

    2004-01-01

    Res Publica esimees peaminister Juhan Parts plaanib minna oma erakonnaga kohalikele valimistele ning uurib võimalusi paremerakondade ühinemiseks. Rakveres toimunud erakonna üldkogust. Lisad: Peaministri neli rasket hetke; Res Publica ministrid said parteilt toetuse. Vt. samas: Reformierakond kiitis Res Publicat hea koostöö eest; Parts: 191 vastuhäält on hea tulemus

  3. Kes tegelikult lõid Res Publica? / Valeri Kalabugin

    Index Scriptorium Estoniae

    Kalabugin, Valeri

    2005-01-01

    Enne erakonnaks kuulutamist oli Res Publica Eesti iseseisvust ja demokraatiat taotlev ühendus, kuhu on kuulunud mitmed poliitika- ning ühiskonnategelased. Vt. samas: Ühendus Res Publica avaldus. Küsimustele vastavad Res Publica avalike suhete juht Riina Vändre, Riigikogu liige Mart Nutt, ajakirjanik Toomas Kümmel

  4. Ressources Minières En Afrique

    International Development Research Centre (IDRC) Digital Library (Canada)

    Ressources minières en Afrique: quelle réglementation pour le développement? Traduction de: Mining in Africa. Comprend des réf. bibliogr. et un index. Publ. en collab. avec: Centre de recherches pour le développement international. ISBN 978-2-7605-2521-4. 1. Mines – Industrie – Afrique. 2. Mines – Droit – Afrique. 3.

  5. FT-IR, FT-Raman and UV-visible spectra of potassium 3-furoyltrifluoroborate salt

    Science.gov (United States)

    Iramain, Maximiliano A.; Davies, Lilian; Brandán, Silvia Antonia

    2018-04-01

    The potassium 3-furoyltrifluoroborate salt has been experimentally characterized by means of FT-IR, FT-Raman and UV-Visible spectroscopies. Here, the predicted FT-IR, FT-Raman and UV-visible spectra by using theoretical B3LYP/6-31G* and 6-311++G** calculations show very good correlations with the corresponding experimental ones. The solvation energies were predicted by using both levels of calculations. The NBO analyses reveal the high stability of the salt by using the B3LYP/6-31G* level of theory while the AIM studies evidence the ionic characteristics of the salt in both media. The strong blue colour observed on the K atom by using the molecular electrostatic potential mapped suggests that this region act as typical electrophilic site. The gap values have revealed that the salt in gas phase is more reactive than in solution, as was reported in the literature while, the F13⋯H6 interaction together with the Ksbnd O bond observed by the studies of their charges could probably modulate the reactivities of this salt in aqueous solution. The force fields were computed with the SQMFF methodology and the Molvib program to perform the complete vibrational analysis. Then, the 39 vibration normal modes classified as 26 A'+ 13 A″ were completely assigned and their force constants are also reported.

  6. Tuition Rich, Mission Poor: Nonresident Enrollment Growth and the Socioeconomic and Racial Composition of Public Research Universities

    Science.gov (United States)

    Jaquette, Ozan; Curs, Bradley R.; Posselt, Julie R.

    2016-01-01

    Many public research universities fail to enroll a critical mass of low-income and underrepresented minority (URM) students. Though founded with a commitment to access, public research universities face pressure to increase tuition revenue and to recruit high-achieving students. These pressures create an incentive to recruit nonresident students,…

  7. The Impact of "Tuition-Paying" Policy on Retention and Graduation Rates at the University of Ghana

    Science.gov (United States)

    Atuahene, Francis

    2013-01-01

    African universities over the past decade have developed new modes of financial mobilization in search for fiscal solutions to the declining public support for higher education. The creation of the "tuition-paying" ("dual track" or "fee-paying") admission track policy, a variant of cost sharing, is one of such…

  8. "If I Play My Sax My Parents Are Nice to Me": Opportunity and Motivation in Musical Instrument and Singing Tuition

    Science.gov (United States)

    Driscoll, Jennifer

    2009-01-01

    Little consideration has been given to the factors which motivate children to take up music tuition, or their reasons for giving up. In part, this is a reflection of the limited extent to which children have been consulted directly in relation to issues exclusively affecting them. This study considered opportunity and motivation for young people…

  9. In My Own Time: Tuition Fees, Class Time and Student Effort in Non-Formal (Or Continuing) Education

    Science.gov (United States)

    Bolli, Thomas; Johnes, Geraint

    2015-01-01

    We develop and empirically test a model which examines the impact of changes in class time and tuition fees on student effort in the form of private study. The data come from the European Union's Adult Education Survey, conducted over the period 2005-2008. We find, in line with theoretical predictions, that the time students devote to private…

  10. Determinants of Participation and Expenditure Patterns of Private Tuition Received by Primary School Students in Penang, Malaysia: An Exploratory Study

    Science.gov (United States)

    Jelani, Juliana; Tan, Andrew K. G.

    2012-01-01

    In this exploratory study, the censored Tobit model is applied on primary data collected amongst parents of primary school students in Penang, Malaysia to examine the determinants of participation and expenditures on private tuition (PT). Results of the marginal effects indicate that socio-demographic characteristics--ethnicity, household income,…

  11. Understanding the One-to-One Relationship in Instrumental/Vocal Tuition in Higher Education: Comparing Student and Teacher Perceptions

    Science.gov (United States)

    Gaunt, Helena

    2011-01-01

    The power of one-to-one tuition in Higher Music Education is evidenced by its continuing place at the heart of conservatoire education. The need to examine this student-teacher relationship more closely has been emphasised in the last decades by increasing understanding of processes of student learning in Higher Education as a whole, and in…

  12. Onondaga Community College (NY) Tuition Assistance Program (TAP), 1995-1998. Audit by State Comptroller. Report 98-T-7.

    Science.gov (United States)

    Barber, Jerry

    This document reports on the State Comptroller's audit of records and procedures used in administering the Tuition Assistance Program (TAP) at Onondaga Community College (New York). Onondaga certified 5,543 students for 11,723 TAP awards totaling $8,730,058 during the 1995-96 through 1997-98 academic years. The State Comptroller reviewed a sample…

  13. Tuition & Required Fees. New Jersey Colleges & Universities: 1977-78 Through 1983-84. ORM Volume 4: Brief Number 1.

    Science.gov (United States)

    Delehanty, Kathleen

    1983-01-01

    Recent historical trends (1977-1978 through 1983-1984) in tuition and required fee charges in New Jersey colleges and universities are presented. Differences among New Jersey collegiate sectors and among different types of students (full- and part-time, undergraduate and graduate, resident and nonresident) are analyzed in terms of dollar and…

  14. Effects of Private Tuition on the Academic Achievement of Secondary School Students in Subject of Mathematics in Kohat Division, Pakistan

    Directory of Open Access Journals (Sweden)

    Qaiser Suleman

    2014-02-01

    Full Text Available Research reveals that private or home tuition after school time plays a crucial role in strengthening and improving student’s academic achievement. The purpose of the study was to explore the effects of private tuition on the academic achievement of students in subject of mathematics at secondary school level. All the students at secondary school level in Kohat Division (Pakistan constituted the population of the study. The study was delimited to the students of Government High School Ahmadi Banda Karak only. Fifty students of class 09 were selected as sample of the study. Sample students were divided into two groups i.e. control group and experimental group by equating them on the basis of their previous knowledge in subject of mathematics as determined through a pre-test. Each group was composed of 25 students. Students of the experimental group were engaged in tuition for two hours after school time. The study was experimental in nature therefore, “The pre-test-post-test Equivalent Groups Design” was used for the collection of data. Statistical tools i.e. the mean, standard deviation and differences of means were computed for each group. Significance of difference between the mean scores of both the experimental and control groups on the variable of pre-test and post test scores was tested at 0.05 levels by applying t-test. After statistical analysis of the data, the researchers concluded that there is significant positive effect of private tuition on the academic achievement of students in subject of mathematics at secondary school level. Based on the findings, it was recommended that parents should arrange private tuition for their children to move up their achievement level in subject of mathematics.

  15. Farm Shop : Augmenter l'accès aux matières premières agricoles au ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Farm Shop est un modèle de franchise social novateur qui permet d'obtenir des matières premières d'excellente qualité à des prix abordables grâce à des économies d'échelle. Il forme également des franchisés et des agriculteurs sur la façon d'utiliser les matières premières. Au cours de ses trois premières années ...

  16. FT-IR, FT-Raman and Computational Study of Ethyl Methyl Ketone Semicarbazone

    Directory of Open Access Journals (Sweden)

    P. S. Binil

    2011-01-01

    Full Text Available FT-IR and FT-Raman spectra of ethyl methyl ketone semicarbazone were recorded and analyzed. The vibrational wavenumbers were computed using HF/6-31G*, B3PW91/6-31G* and B3LYP/6-31G* basis and compared with experimental data. The first hyperpolarizability, infrared intensities and Raman activities are reported. The calculated first hyperpolarizability is comparable with the reported values of similar derivatives and is an attractive object for future studies of non-linear optics. The extended π-electron delocalization over the carbazone moiety is responsible for the nonlinearity of the molecule. The geometrical parameters of the title compound are in agreement with that of similar derivatives. The red shift of the NH stretching wavenumber in the infrared spectrum from the computed wavenumber indicates the weakening of the NH bond resulting in proton transfer to the neighboring oxygen atom.

  17. Res Dec 07 Final 05-12-07

    Indian Academy of Sciences (India)

    client1

    GA). AC power system (4) 69 (GA). Acacia leucophloea(Roxb.)Willd. (11) 93 (FT). Acacia polycantha Willd. (9) 105 (FT). Adaptive control (9) 12 (GA). AFPs (12) 25 (GA). Alkaline ferricyanide (4) 92 (CR). Alstonia macrophylla (DC) Wall (1) (FT).

  18. Quintessence and Holographic Dark Energy in f(T) Gravity

    International Nuclear Information System (INIS)

    Zubair, M.

    2015-01-01

    We regard f(T) theory as an efficient tool to explain the current cosmic acceleration and associate its evolution with the known dark energy models. The numerical scheme is applied to reconstruct f(T) theory from dark energy model with constant equation of state parameter and holographic dark energy model. We set the model parameters ω ϑ and c as describing the different evolution eras and show the distinctive behavior of each case realized in f(T) theory. We also present the future evolution of reconstructed f(T) and find that it is consistent with the recent observations.

  19. McVittie solution in f(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Bejarano, Cecilia; Jose Guzman, Maria [Instituto de Astronomia y Fisica del Espacio (IAFE, CONICET-UBA), Buenos Aires (Argentina); Ferraro, Rafael [Instituto de Astronomia y Fisica del Espacio (IAFE, CONICET-UBA), Buenos Aires (Argentina); Universidad de Buenos Aires, Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Buenos Aires (Argentina)

    2017-12-15

    We show that McVittie geometry, which describes a black hole embedded in a FLRW universe, not only solves the Einstein equations but also remains as a non-deformable solution of f(T) gravity. This search for GR solutions that survive in f(T) gravity is facilitated by a null tetrad approach. We also show that flat FLRW geometry is a consistent solution of f(T) dynamical equations not only for T = -6H{sup 2} but also for T = 0, which could be a manifestation of the additional degrees of freedom involved in f(T) theories. (orig.)

  20. No further gravitational wave modes in F(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Bamba, Kazuharu, E-mail: bamba@kmi.nagoya-u.ac.jp [Kobayashi–Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602 (Japan); Capozziello, Salvatore, E-mail: capozziello@na.infn.it [Kobayashi–Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602 (Japan); Dipartimento di Fisica, Università di Napoli “Federico II” (Italy); INFN Sez. di Napoli, Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126 Napoli (Italy); De Laurentis, Mariafelicia, E-mail: felicia@na.infn.it [Kobayashi–Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602 (Japan); Dipartimento di Fisica, Università di Napoli “Federico II” (Italy); INFN Sez. di Napoli, Compl. Univ. di Monte S. Angelo, Edificio G, Via Cinthia, I-80126 Napoli (Italy); Nojiri, Shin' ichi, E-mail: nojiri@phys.nagoya-u.ac.jp [Kobayashi–Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602 (Japan); Department of Physics, Nagoya University, Nagoya 464-8602 (Japan); Sáez-Gómez, Diego, E-mail: diego.saezgomez@uct.ac.za [Kobayashi–Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya 464-8602 (Japan); Astrophysics, Cosmology and Gravity Centre (ACGC) and Department of Mathematics and Applied Mathematics, University of Cape Town, Rondebosch 7701, Cape Town (South Africa); Fisika Teorikoaren eta Zientziaren Historia Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644 Posta Kutxatila, 48080 Bilbao (Spain)

    2013-11-25

    We explore the possibility of further gravitational wave modes in F(T) gravity, where T is the torsion scalar in teleparallelism. It is explicitly demonstrated that gravitational wave modes in F(T) gravity are equivalent to those in General Relativity. This result is achieved by calculating the Minkowskian limit for a class of analytic function of F(T). This consequence is also confirmed by the preservative analysis around the flat background in the weak field limit with the scalar–tensor representation of F(T) gravity.

  1. No further gravitational wave modes in F(T) gravity

    International Nuclear Information System (INIS)

    Bamba, Kazuharu; Capozziello, Salvatore; De Laurentis, Mariafelicia; Nojiri, Shin'ichi; Sáez-Gómez, Diego

    2013-01-01

    We explore the possibility of further gravitational wave modes in F(T) gravity, where T is the torsion scalar in teleparallelism. It is explicitly demonstrated that gravitational wave modes in F(T) gravity are equivalent to those in General Relativity. This result is achieved by calculating the Minkowskian limit for a class of analytic function of F(T). This consequence is also confirmed by the preservative analysis around the flat background in the weak field limit with the scalar–tensor representation of F(T) gravity

  2. [Effect of selenium on serum TGAb, TMAb, FT3, FT4 and TSH of rats with excessive intake of iodine].

    Science.gov (United States)

    Chi, Haiyan; Zhou, Yuping; Li, Li

    2012-07-01

    To investigate the effect of selenium on the TGAb, TMAb, FT3, FT4 and TSH level of rats with excessive intake of iodine. Wistar rats were divided into three groups by random:normal control, high iodine group and high iodine plus selenium group. Rats in the high iodine plus selenium group were lavaged with sodium selenite for 10 weeks. The levels of serum TGAb, TMAb, FT3, FT4 and TSH were tested at different time of the experiment. There were no significant change on levels of FT3, FT4 and TSH (P > 0.05). The levels of TGAb and TMAb in the high iodine group were increased slowly (P iodine plus selenium group. Excessive intake of iodine might induce goiter, and selenium might have antagonistic effect on it.

  3. RES-E-NEXT: Next Generation of RES-E Policy Instruments

    Energy Technology Data Exchange (ETDEWEB)

    Miller, M.; Bird, L.; Cochran, J.; Milligan, M.; Bazilian, M. [National Renewable Energy Laboratory, Golden, CO (United States); Denny, E.; Dillon, J.; Bialek, J.; O’Malley, M. [Ecar Limited (Ireland); Neuhoff, K. [DIW Berlin (Germany)

    2013-07-04

    The RES-E-NEXT study identifies policies that are required for the next phase of renewable energy support. The study analyses policy options that secure high shares of renewable electricity generation and adequate grid infrastructure, enhance flexibility and ensure an appropriate market design. Measures have limited costs or even save money, and policies can be gradually implemented.

  4. Tuition reduction is the key factor determining tax burden of graduate students under the Tax Cuts and Job Act [version 2; referees: 2 approved

    Directory of Open Access Journals (Sweden)

    Patricia M. Lawston

    2018-02-01

    Full Text Available Background: The proposed Tax Cuts and Jobs Act (H.R.1 has stirred significant public debate on the future of American economics.  While supporters of the plan have championed it as a necessity for economic revitalization, detractors have pointed out areas of serious concern, particularly for low- and middle-income Americans.  One particularly alarming facet of the plan is the radical change to education finance programs and taxation of students in higher education.  Methods:  By analyzing actual income and tuition of a public and a private university student, as well as the ‘average’ graduate student, we investigated the effect of both the House and Senate versions of H.R. 1 on taxation of students of various family structures.  Results:  Our findings indicate that taxable tuition would be the greatest contributor to graduate student tax burden across all four categories of filing status.  However, when tuition reduction is upheld or a student is on sustaining fees rather than full tuition, graduate students would realize decreases in taxation. Conclusions:  Overall, we conclude that removal of tuition reduction would result in enormous tax burdens for graduate students and their families and that these effects are dependent not only on the status of the student in their degree program but also on their tuition and stipend, and therefore the institution they attend.

  5. Afrique : ressources minières, environnement et gouvernance ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    25 janv. 2011 ... ils regorgent de richesses inouïes », assure Bonnie Campbell, directrice du Groupe de recherche sur les activités minières en Afrique (GRAMA) et titulaire de la Chaire C.-A. Poissant de recherche sur la gouvernance et l'aide au développement, faisant référence aux ressources minières et pétrolières dont ...

  6. How states can reduce the dropout rate for undocumented immigrant youth: the effects of in-state resident tuition policies.

    Science.gov (United States)

    Potochnick, Stephanie

    2014-05-01

    As of December 2011, 13 states have adopted an in-state resident tuition (IRT) policy that provides in-state tuition to undocumented immigrants and several other states are considering similar legislation. While previous research focuses on how IRT policies affect college entry and attainment, this study examines the effect these policies have on high school dropout behavior. Using the Current Population Survey (CPS) and difference-in-difference models, this paper examines whether IRT policies reduce the likelihood of dropping out of high school for Mexican foreign-born non-citizens (FBNC), a proxy for undocumented youth. The policy is estimated to cause an eight percentage point reduction in the proportion that drops out of high school. The paper develops an integrated framework that combines human capital theory with segmented assimilation theory to provide insight into how IRT policies influence student motivation and educational attainment at the high school level. Copyright © 2014 Elsevier Inc. All rights reserved.

  7. FT and florigen long-distance flowering control in plants.

    Science.gov (United States)

    Putterill, Joanna; Varkonyi-Gasic, Erika

    2016-10-01

    The great hunt for florigen, the universal, long distance flowering regulator proposed by Chailakhan in the 1930s, resulted in the discovery a decade ago that FT-like proteins fulfilled the predictions for florigen. They are small (∼175 amino acids), globular, phosphatidylethanolamine-binding (PEBP) proteins, phloem-expressed, graft-transmissible and able to move to the shoot apex to act as potent stimulators of flowering in many plants. Genes that regulate Arabidopsis FT protein movement and some features of Arabidopsis FT protein that make it an effective florigen have recently been identified. Although floral promotion via graft transmission of FT has not been demonstrated in trees, FT-like genes have been successfully applied to reducing the long juvenile (pre-flowering) phase of many trees enabling fast track breeding. Copyright © 2016 Elsevier Ltd. All rights reserved.

  8. The Effect of Tuition Fees on Student Enrollment and Location Choice – Interregional Migration, Border Effects and Gender Differences

    DEFF Research Database (Denmark)

    Alecke, Björn; Burgard, Claudia; Mitze, Timo

    analysis, we use the variation over time and across regions in this institutional change in order to isolate the causal effect of tuition fees on student enrollment and migration. Controlling for a range of regional- and university-specific effects, our results from Difference-in-Differences estimations...... state. Controlling for these border effects, the relocating trend in long-distance migration of university freshmen does not show any particular gender differences....

  9. The Effect of Tuition Fees on Student Enrollment and Location Choice: Interregional Migration, Border Effects and Gender Differences

    DEFF Research Database (Denmark)

    Alecke, Bjoern; Burgard, Claudia; Mitze, Timo

    analysis, we use the variation over time and across regions in this institutional change in order to isolate the causal effect of tuition fees on student enrollment and migration. Controlling for a range of regional- and university-specific effects, our results from Difference-in-Differences estimations...... state. Controlling for these border effects, the relocating trend in long-distance migration of university freshmen does not show any particular gender differences....

  10. The student and the ovum: The lack of autonomy and informed consent in trading genes for tuition

    Directory of Open Access Journals (Sweden)

    Papadimos Alexa T

    2004-07-01

    Full Text Available Abstract Rising tuition costs have forced university students to become creative in finding ways to fund their education. Some female university students have decided that ova donation may be an acceptable alternative in which to pay for their tuition. This alternative presents itself because of the insufficient number of ova available for assisted reproduction and emerging stem cell technologies. Young female university students are encouraged by Internet sources and respectable electronic and print media to donate their ova in the cause of assisted reproduction for monetary compensation. While university students generally exhibit autonomy, the constraining influence of their financial predicament compromises the elements of informed consent (voluntariness, competence, capacity, understanding, and disclosure as to their making an autonomous decision in regard to egg donation. Thus, any moral possibility of giving informed consent is negated. Informed consent can only occur through autonomy. A female university student in need of financial resources to pay for her education cannot make an autonomous choice to trade her genes for tuition. Donated ova are not only needed for assisted reproduction, but for stem cell technologies. While the long-term health of women who donate their ova is of concern (a potential risk of cancer after long term use of ovulation induction, of equal concern is the possibility of a growth in the trade of ova targeting third world and Eastern European women where the precedence for autonomy and informed consent is not well established.

  11. Evaluation of Turmeric Powder Adulterated with Metanil Yellow Using FT-Raman and FT-IR Spectroscopy

    Science.gov (United States)

    Dhakal, Sagar; Chao, Kuanglin; Schmidt, Walter; Qin, Jianwei; Kim, Moon; Chan, Diane

    2016-01-01

    Turmeric powder (Curcuma longa L.) is valued both for its medicinal properties and for its popular culinary use, such as being a component in curry powder. Due to its high demand in international trade, turmeric powder has been subject to economically driven, hazardous chemical adulteration. This study utilized Fourier Transform-Raman (FT-Raman) and Fourier Transform-Infra Red (FT-IR) spectroscopy as separate but complementary methods for detecting metanil yellow adulteration of turmeric powder. Sample mixtures of turmeric powder and metanil yellow were prepared at concentrations of 30%, 25%, 20%, 15%, 10%, 5%, 1%, and 0.01% (w/w). FT-Raman and FT-IR spectra were acquired for these mixture samples as well as for pure samples of turmeric powder and metanil yellow. Spectral analysis showed that the FT-IR method in this study could detect the metanil yellow at the 5% concentration, while the FT-Raman method appeared to be more sensitive and could detect the metanil yellow at the 1% concentration. Relationships between metanil yellow spectral peak intensities and metanil yellow concentration were established using representative peaks at FT-Raman 1406 cm−1 and FT-IR 1140 cm−1 with correlation coefficients of 0.93 and 0.95, respectively. PMID:28231130

  12. Evaluation of Turmeric Powder Adulterated with Metanil Yellow Using FT-Raman and FT-IR Spectroscopy.

    Science.gov (United States)

    Dhakal, Sagar; Chao, Kuanglin; Schmidt, Walter; Qin, Jianwei; Kim, Moon; Chan, Diane

    2016-05-17

    Turmeric powder ( Curcuma longa L.) is valued both for its medicinal properties and for its popular culinary use, such as being a component in curry powder. Due to its high demand in international trade, turmeric powder has been subject to economically driven, hazardous chemical adulteration. This study utilized Fourier Transform-Raman (FT-Raman) and Fourier Transform-Infra Red (FT-IR) spectroscopy as separate but complementary methods for detecting metanil yellow adulteration of turmeric powder. Sample mixtures of turmeric powder and metanil yellow were prepared at concentrations of 30%, 25%, 20%, 15%, 10%, 5%, 1%, and 0.01% ( w/w ). FT-Raman and FT-IR spectra were acquired for these mixture samples as well as for pure samples of turmeric powder and metanil yellow. Spectral analysis showed that the FT-IR method in this study could detect the metanil yellow at the 5% concentration, while the FT-Raman method appeared to be more sensitive and could detect the metanil yellow at the 1% concentration. Relationships between metanil yellow spectral peak intensities and metanil yellow concentration were established using representative peaks at FT-Raman 1406 cm -1 and FT-IR 1140 cm -1 with correlation coefficients of 0.93 and 0.95, respectively.

  13. Evaluation of Turmeric Powder Adulterated with Metanil Yellow Using FT-Raman and FT-IR Spectroscopy

    Directory of Open Access Journals (Sweden)

    Sagar Dhakal

    2016-05-01

    Full Text Available Turmeric powder (Curcuma longa L. is valued both for its medicinal properties and for its popular culinary use, such as being a component in curry powder. Due to its high demand in international trade, turmeric powder has been subject to economically driven, hazardous chemical adulteration. This study utilized Fourier Transform-Raman (FT-Raman and Fourier Transform-Infra Red (FT-IR spectroscopy as separate but complementary methods for detecting metanil yellow adulteration of turmeric powder. Sample mixtures of turmeric powder and metanil yellow were prepared at concentrations of 30%, 25%, 20%, 15%, 10%, 5%, 1%, and 0.01% (w/w. FT-Raman and FT-IR spectra were acquired for these mixture samples as well as for pure samples of turmeric powder and metanil yellow. Spectral analysis showed that the FT-IR method in this study could detect the metanil yellow at the 5% concentration, while the FT-Raman method appeared to be more sensitive and could detect the metanil yellow at the 1% concentration. Relationships between metanil yellow spectral peak intensities and metanil yellow concentration were established using representative peaks at FT-Raman 1406 cm−1 and FT-IR 1140 cm−1 with correlation coefficients of 0.93 and 0.95, respectively.

  14. Farm Shop : Augmenter l'accès aux matières premières agricoles au ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Il forme également des franchisés et des agriculteurs sur la façon d'utiliser les matières premières. Au cours de ses trois premières années d'existence, Farm Shop a créé 25 magasins, lesquels ont servi plus de 60 000 petits exploitants agricoles (dont 48 % étaient des femmes). Ces magasins ont permis de valider les ...

  15. Les Lumières à Manhattan

    OpenAIRE

    Goehr, Lydia

    2017-01-01

    La Dialectik der Aufklärung in Amerika n’est pas la même chose que la Dialectique des Lumières aux États-Unis. La différence tient sans doute au fait qu’on regarde les choses de l’extérieur ou de l’intérieur du pays. Le titre de cette conférence est volontairement ambigu. Il nous invite à considérer la réception aux États-Unis du livre d’Horkheimer et Adorno, Die Dialektik der Aufklärung, et son rôle dans la définition du concept d’« Amerika » avec un k à la Kafka. Et à nous demander s’il a v...

  16. Res Publica Euroopas / Eiki Berg, Marko Mihkelson ; interv. Lauri Lugna

    Index Scriptorium Estoniae

    Berg, Eiki, 1970-

    2003-01-01

    Res Publica välispoliitika eksperdid Eiki Berg ja Marko Mihkelson vastavad küsimustele, mis käsitlevad Res Publica saamist Euroopa Rahvapartei (ERP) liikmeks, koostööd ERP-ga, EL-i põhiseaduslikku lepet

  17. Res Publica viskab Oleg Rebase välja

    Index Scriptorium Estoniae

    2006-01-01

    Res Publica Tallinna piirkonna juhatus leidis, et Oleg Rebane läks Keskerakonna provokatsiooniga kaasa minnes vastuollu Res Publica põhimõtetega. Tallinna linnapea Jüri Ratase suhtes algatatud umbusaldushääletuse põhjustest. Sven Sester vastab küsimusele, mis seotud Oleg Rebase ja Tõnis Bittmani juhtumiga

  18. Noether symmetry approach in f(T, B) teleparallel cosmology

    Energy Technology Data Exchange (ETDEWEB)

    Bahamonde, Sebastian [University College London, Department of Mathematics, London (United Kingdom); Capozziello, Salvatore [Universita di Napoli ' ' Federico II' ' , Dipartimento di Fisica, Naples (Italy); Gran Sasso Science Institute, L' Aquila (Italy); Compl. Univ. di Monte S. Angelo, Naples (Italy); INFN, Napoli (Italy)

    2017-02-15

    We consider the cosmology derived from f(T, B) gravity where T is the torsion scalar and B = (2)/(e)∂{sub μ}(eT{sup μ}) a boundary term. In particular we discuss how it is possible to recover, under the same standard, the teleparallel f(T) gravity, the curvature f(R) gravity, and the teleparallel-curvature f(R, T) gravity, which are particular cases of f(T, B). We adopt the Noether Symmetry Approach to study the related dynamical systems and to find cosmological solutions. (orig.)

  19. Characterization of Momordica charantia Ussing FT-IR Spectroscopy

    Directory of Open Access Journals (Sweden)

    Attila Keseru

    2016-11-01

    In this paper, because earlier claim shows that the plant used as stomachic, carminative, tonic, antipyretic, antidiabetic, in rheumatoid arthritis and gout, the present investigation was carried to characterized a principal components of plant using FT-IR technique

  20. Contours - MO 2012 Greene County 5ft Contours (SHP)

    Data.gov (United States)

    NSGIC State | GIS Inventory — 5ft cartographic contour file for Greene County, Missouri. This file was created using the elevation data from the 2011 LiDAR flight. It includes indexes for 10, 25,...

  1. Static anisotropic solutions in f(T) theory

    Energy Technology Data Exchange (ETDEWEB)

    Daouda, M.H.; Rodrigues, Manuel E. [Universidade Federal do Espirito Santo, Centro de Ciencias Exatas, Departamento de Fisica, Av. Fernando Ferrari s/n, Campus de Goiabeiras, CEP29075-910, Vitoria, ES (Brazil); Houndjo, M.J.S. [Universidade Federal da Bahia, Instituto de Fisica, Salvador, BA (Brazil)

    2012-02-15

    In previous work, we undertook to study static and anisotropic content in f(T) theory and obtained new spherically symmetric solutions considering a constant torsion and some particular conditions for the pressure. In this paper, still in the framework of f(T) theory, new spherically symmetric solutions are obtained, first considering the general case of an isotropic fluid and later the anisotropic content case in which the generalized conditions for the matter content are considered such that the energy density, the radial and tangential pressures depend on the algebraic f(T) and its derivative f{sub T} (T). Moreover, we obtain the algebraic function f(T) through the reconstruction method for two cases and also study a polytropic model for the stellar structure. (orig.)

  2. Mapping Discrimination Experienced by Indonesian Trans* FtM Persons.

    Science.gov (United States)

    Gordon, Danny; Pratama, Mario Prajna

    2017-01-01

    This work sought to document how Indonesian trans* FtM persons experienced discrimination across the interlinked domains of social networks, religious and educational institutions, employment and the workplace, and health care institutions. Objectives were (1) to map the discrimination experienced by trans* FtM individuals in Indonesia, and (2) to establish the specific priorities of the Indonesian trans* FtM community. In-depth interviews, focus groups, and participant observation was used involving 14 respondents. Findings revealed that respondents experienced othering through rejection, misidentification, harassment, "correction," and bureaucratic discrimination across the five preestablished domains. Health care and a lack of information emerged as areas of particular concern for respondents. This work calls for health care that is sensitive to the needs of trans* FtM people coupled with high-quality information to alleviate the cycles through which discrimination is sustained.

  3. Data Sources for NetZero Ft Carson Model

    Data.gov (United States)

    U.S. Environmental Protection Agency — Table of values used to parameterize and evaluate the Ft Carson NetZero integrated Model with published reference sources for each value. This dataset is associated...

  4. New static solutions in f(T) theory

    Energy Technology Data Exchange (ETDEWEB)

    Daouda, M.H.; Rodrigues, Manuel E. [Universidade Federal do Espirito Santo, Centro de Ciencias Exatas, Departamento de Fisica, Vitoria, ES (Brazil); Houndjo, M.J.S. [Universidade Federal da Bahia, Instituto de Fisica, Salvador, BA (Brazil)

    2011-11-15

    We consider the equations of motion of an anisotropic space-time in f(T) theory, where T is the torsion. New spherically symmetric solutions of black holes and wormholes are obtained with a constant torsion and for the cases for which the radial pressure is proportional to a real constant, to some algebraic functions f(T) and their derivatives f{sub T}(T), or vanishes identically. (orig.)

  5. Radiotherapy combined with Tegafur (FT-207s) for brain tumors

    International Nuclear Information System (INIS)

    Aoki, Yoshiro

    1981-01-01

    5-Fluorouracil (5-FU) has anti-tumor effects as an anti-metabolite, but it cannot pass the Blood-Brain-Barrier (BBB). FT-207 a masked-compound of 5-FU, is easily lipid soluble and is able to pass the BBB. Twenty eight patients of primary brain tumor and 8 patients of metastatic brain tumor were treated with irradiation combined with 750 mg of FT-207 suppository. Twenty four patients of primary brain tumor were treated only with irradiation as control. The mean survival time was 20.4 +- 11.8 months for the combined therapy group and 17.6 +- 8.6 months for the control. The concentration of FT-207 and 5-FU in serum and in cerebrospinal fluid (CSF) was investigated after administration of 750 mg of FT-207 suppository per annum. The maximum concentration of FT-207 and of 5-FU in serum was 20.4 +- 11.8 mcg/ml and 0.06 +- 0.02 mcg/ml, respectively. There were observed several side effects, such as anorexia, nausea, exanthema and etc. These side effects were not so great as to interrupt the therapy at the dose level of 750 mg of FT-207. However, at the dose of 1500 mg, one case showed disturbance of consciousness, to which attention should be called. (author)

  6. A review of the FT distillate pathway in GHGenius

    International Nuclear Information System (INIS)

    2006-01-01

    Fischer-Tropsch (FT) distillates products are now used throughout the world as a commercial fuel. However, lifecycle greenhouse gas (GHG) emissions from FT distillates fuels are higher than diesel fuel produced from crude oil. This paper provided details of a lifecycle analysis of FT distillates pathways created for GHGenius, a model used to analyze emissions from a variety of combustion sources. The study examined values reported in tests conducted by major oil and gas operators and described the conversion technologies typically used at FT distillates production facilities. Summaries of reports on FT distillates emissions were also provided. Three primary factors were identified that contributed to different results reported for FT distillates emissions: (1) the efficiency of the conversion process; (2) the allocation procedure used in the conventional oil refinery for the emissions of individual products; and (3) the emissions associated with natural gas production. The GHGenius model was used to quantify the impact of the 3 main factors. An alternative system expansion methodology was used to compare crude oil diesel pathways with a high efficiency, low gas leak scenario in order to achieve high values reported by some oil and gas operators. 5 refs., 5 tabs., 5 figs

  7. A Polychoric Correlation to Identify the Principle Component in Classifying Single Tuition Fee Capabilities on the Students Socio-Economic Database

    Science.gov (United States)

    Yustanti, W.; Anistyasari, Y.

    2018-01-01

    The government has issued the regulation number 55 of 2013 about the enactment of a single tuition fee based on the socio-economic conditions of each student. All public universities are required to implement this policy. Therefore, each university needs to create a formulation that can be used to categorize a student into which cost group. The results of the data collection found that the parameters used to determine the classification of tuition fees between one universities with another are different. In this research, taken a sampling of student data at one public university which is using 43 predictor variables and 8 categories of single tuition. The sample data used are socioeconomic data of students of 2016 and 2017 classes received through public university entrance selections. The results of this study reveal that from 43 variables, there are 16 variables which are the most significant in influencing single tuition category with goodness-of-fit index is 0.866. This value means that the proposed model can indicate student’s ability to pay the tuition fee.

  8. A Study of Teacher Stereotypes: How Do Tuition-Free Teacher Candidates and General Undergraduates Think about Middle School and University Teachers in China?

    Science.gov (United States)

    Zuo, Youxia; Zhao, Yufang; Peng, Chunhua; Chen, Youguo

    2017-01-01

    A tuition-free teacher candidate is an undergraduate who receives tuition-free teacher education and must work as a teacher in a middle school after their graduation. Tuition-free candidates are of the focus of many researchers; however, no study reports how tuition-free teacher candidates think about teachers. The present study explored stereotypes about middle school and university teachers held by teacher candidates. Specifically, we looked for the differences between the stereotypes held by the teacher candidates and general undergraduates. This study attempted to provide a potential tool to predict the actual willingness of teacher candidates to work as middle school teachers. University and middle school teachers were evaluated using descriptive phrases or words on a five-point Likert scale by 116 tuition-free teacher candidates and 155 general undergraduates. Exploratory factor analyses revealed a three-factor stereotype model including occupational cognition, occupational personality, and occupational emotion. Compared with general undergraduates, teacher candidates held more positive occupational personality and emotions toward middle school teachers; they held more negative occupational emotions toward university teachers. Further, the undergraduates' willingness to be middle school teachers positively correlated with positive occupational emotions and negatively correlated with negative occupational personality and emotions toward middle school teachers. This supported previous studies that individuals' professional willingness were influenced by their stereotypes about professions. PMID:28469587

  9. Res Publica lükkas tagasi Isamaaliidu ühinemisettepaneku / Mirko Ojakivi

    Index Scriptorium Estoniae

    Ojakivi, Mirko

    2005-01-01

    Kuigi Res Publica juhid lükkasid tagasi idee ühineda Isamaaliiduga, on Res Publica valmis koostööks nii Isamaaliidu kui ka kõigi teiste erakondadega. Res Publica parlamendifraktsiooni esimehe Marko Pomerantsi arvamus

  10. Evaluation of Turmeric Powder Adulterated with Metanil Yellow Using FT-Raman and FT-IR Spectroscopy

    OpenAIRE

    Dhakal, Sagar; Chao, Kuanglin; Schmidt, Walter; Qin, Jianwei; Kim, Moon; Chan, Diane

    2016-01-01

    Turmeric powder (Curcuma longa L.) is valued both for its medicinal properties and for its popular culinary use, such as being a component in curry powder. Due to its high demand in international trade, turmeric powder has been subject to economically driven, hazardous chemical adulteration. This study utilized Fourier Transform-Raman (FT-Raman) and Fourier Transform-Infra Red (FT-IR) spectroscopy as separate but complementary methods for detecting metanil yellow adulteration of turmeric powd...

  11. FT-Raman and FT-Infrared investigations of archaeological artefacts from Foeni Neolithic site (Banat, Romania)

    OpenAIRE

    Simona Cîntă Pînzaru; Dana Pop; Loredana Nemeth

    2008-01-01

    An impressive collection of chert artefacts from the Foeni Neolithic archaeological site (Timiş County, Banat region, Romania) is hosted by the Banat Museum in Timişoara. A representative set of seven specimens was non-destructively investigated using FT-Raman and ATR-FT-IR spectroscopy. The research was carried out for checking if these readily-available, non-destructive, fast, and cheap methods, which do not require preliminary sample preparation could provide significant information for ch...

  12. ReS2-based interlayer tunnel field effect transistor

    Science.gov (United States)

    Mohammed, Omar B.; Movva, Hema C. P.; Prasad, Nitin; Valsaraj, Amithraj; Kang, Sangwoo; Corbet, Chris M.; Taniguchi, Takashi; Watanabe, Kenji; Register, Leonard F.; Tutuc, Emanuel; Banerjee, Sanjay K.

    2017-12-01

    In this study, we report the fabrication and characterization of a vertical resonant interlayer tunneling field-effect transistor created using exfoliated, few-layer rhenium disulfide (ReS2) flakes as the electrodes and hexagonal boron nitride as the tunnel barrier. Due to the Γ-point conduction band minimum, the ReS2 based system offers the possibility of resonant interlayer tunneling and associated low-voltage negative differential resistance (NDR) without rotational alignment of the electrode crystal orientations. Substantial NDR is observed, which appears consistent with in-plane crystal momentum conserving tunneling, although considerably broadened by scattering consistent within low mobility ReS2 flakes.

  13. FT-Raman and FT-IR studies of 1:2.5 piroxicam: β-cyclodextrin inclusion compound

    Science.gov (United States)

    Bertoluzza, A.; Rossi, M.; Taddei, P.; Redenti, E.; Zanol, M.; Ventura, P.

    1999-05-01

    The FT-Raman and FT-IR spectra of amorphous 1:2.5 piroxicam (P): β-cyclodextrin (βCD) inclusion compound (PβCD) are presented and discussed in comparison with the spectra of the three main modifications of piroxicam (α,β and monohydrate). In the 1700-1200 cm -1 FT-Raman spectrum of 1:2.5 PβCD inclusion compound the bands of βCD are weak and covered by those stronger of piroxicam, differently from the FT-IR spectrum where the bands of βCD are stronger, so covering a large part of the spectrum. Typical FT-Raman marker bands are assigned for the characterization of the three modifications of piroxicam. The FT-Raman spectrum of 1:2.5 PβCD inclusion compound predominantly shows the bands at about 1465 and 1400 cm -1 of the monohydrate, indicating that piroxicam assumes the zwitterionic structure stabilized by interaction with βCD via electrostatic and hydrogen bonds. The dipolar character of 1:2.5 PβCD inclusion compound improves the solubility and the dissolution rate of piroxicam and thus its rate of absorption.

  14. Phase portraits of general f(T) cosmology

    Science.gov (United States)

    Awad, A.; El Hanafy, W.; Nashed, G. G. L.; Saridakis, Emmanuel N.

    2018-02-01

    We use dynamical system methods to explore the general behaviour of f(T) cosmology. In contrast to the standard applications of dynamical analysis, we present a way to transform the equations into a one-dimensional autonomous system, taking advantage of the crucial property that the torsion scalar in flat FRW geometry is just a function of the Hubble function, thus the field equations include only up to first derivatives of it, and therefore in a general f(T) cosmological scenario every quantity is expressed only in terms of the Hubble function. The great advantage is that for one-dimensional systems it is easy to construct the phase space portraits, and thus extract information and explore in detail the features and possible behaviours of f(T) cosmology. We utilize the phase space portraits and we show that f(T) cosmology can describe the universe evolution in agreement with observations, namely starting from a Big Bang singularity, evolving into the subsequent thermal history and the matter domination, entering into a late-time accelerated expansion, and resulting to the de Sitter phase in the far future. Nevertheless, f(T) cosmology can present a rich class of more exotic behaviours, such as the cosmological bounce and turnaround, the phantom-divide crossing, the Big Brake and the Big Crunch, and it may exhibit various singularities, including the non-harmful ones of type II and type IV. We study the phase space of three specific viable f(T) models offering a complete picture. Moreover, we present a new model of f(T) gravity that can lead to a universe in agreement with observations, free of perturbative instabilities, and applying the Om(z) diagnostic test we confirm that it is in agreement with the combination of SNIa, BAO and CMB data at 1σ confidence level.

  15. The Language of the Internet – The Use of Concessive Conjunctions in Blogs by Companies Providing Private Tuition

    Directory of Open Access Journals (Sweden)

    Jindřiška Kraťkova

    2017-05-01

    Full Text Available Concessions are said to be a key aspect of English semantics because concessive constructions create a place for contrast, i.e. contradicting relations. Several studies have been carried out on this topic (i.e. on the positioning of conjunctions, linguistic interference, etc.. The aim of this paper is to focus on the frequency of use of the most common concessive conjunctions in Internet discussions with native speakers who give private tuition. The focus is primarily on the main, most commonly used concessive conjunctions in tutoring blogs.

  16. Isamaa ja Res Publica Liidu plaan / Juhan Parts

    Index Scriptorium Estoniae

    Parts, Juhan, 1966-

    2008-01-01

    Ilmunud ka: Eesti Eest = Za Estoniju : Izdanije objedinenija "Sojuz Otetshestva i Res Publica" 15. mai 2008, lk. 4-5. Eesti majanduse uutest ülesannetest. Kommenteerib: Mart Laar. Vt. samas: IRL-i ettepanekud koalitsioonileppe täienduseks

  17. Comentário sobre as Res Gestae Divi Avgvsti

    Directory of Open Access Journals (Sweden)

    Maria Luiza Corassin

    2004-12-01

    Full Text Available This article studies an epigraphic source, Augustus's Res gestae, which provides elements that elucidate the construction of the imperial power system and the relationship between ruler and ruled.

  18. CRITÈRES DE CHOIX DE L’ INVESTISSEMENT

    Directory of Open Access Journals (Sweden)

    CEAUŞESCU Aurelian Ionut

    2009-12-01

    Full Text Available Les critères du choix de l’investissement sont liés à sa nature (investissement technique, investissement financier, investissement de sécurité, investissement de prestige, etc.. Nous allons raisonner sur un investissement technique dont les conséquences sont mesurables par des flux financiers. Mais, on ne peut pas estimer les conséquences financières d’un investissement de prestige ou de sécurité. Les critères financiers du choix des investissements reposent tous sur un principe commun: l’actualisation Ses principaux critères sont : 1 la durée (le délai de récupération du capital investi 2 le flux net de trésorerie actualisé ; 3 l’indice de profitabilité et le taux interne de rentabilite

  19. Inflationary cosmology in unimodular F(T) gravity

    Science.gov (United States)

    Bamba, Kazuharu; Odintsov, Sergei D.; Saridakis, Emmanuel N.

    2017-07-01

    We investigate the inflationary realization in the context of unimodular F(T) gravity, which is based on the F(T) modification of teleparallel gravity, in which one imposes the unimodular condition through the use of Lagrange multipliers. We develop the general reconstruction procedure of the F(T) form that can give rise to a given scale-factor evolution, and then we apply it in the inflationary regime. We extract the Hubble slow-roll parameters that allow us to calculate various inflation-related observables, such as the scalar spectral index and its running, the tensor-to-scalar ratio, and the tensor spectral index. Then, we examine the particular cases of de Sitter and power-law inflation, of Starobinsky inflation, as well as inflation in a specific model of unimodular F(T) gravity. As we show, in all cases the predictions of our scenarios are in a very good agreement with Planck observational data. Finally, inflation in unimodular F(T) gravity has the additional advantage that it always allows for a graceful exit for specific regions of the model parameters.

  20. The tuition fee ‘shock’: Analysing the response of first-year students to a spatially discontinuous policy change in Germany

    DEFF Research Database (Denmark)

    Mitze, Timo Friedel; Burgard, Claudia; Alecke, Björn

    2015-01-01

    students. Second, changes in migration behaviour are sensitive to geographical distance. Finally, comparing different types of higher education institutions, we find that the migration effect is larger for universities compared to technical colleges and colleges of arts or music....... variation in tuition fee regimes as a result of a Federal Constitutional Court decision. Our empirical results show that the introduction of tuition fees had a particular impact on student migration. We observe three effects: first, male students show a stronger migration response compared to female...

  1. ResBoost: characterizing and predicting catalytic residues in enzymes

    Directory of Open Access Journals (Sweden)

    Freund Yoav

    2009-06-01

    Full Text Available Abstract Background Identifying the catalytic residues in enzymes can aid in understanding the molecular basis of an enzyme's function and has significant implications for designing new drugs, identifying genetic disorders, and engineering proteins with novel functions. Since experimentally determining catalytic sites is expensive, better computational methods for identifying catalytic residues are needed. Results We propose ResBoost, a new computational method to learn characteristics of catalytic residues. The method effectively selects and combines rules of thumb into a simple, easily interpretable logical expression that can be used for prediction. We formally define the rules of thumb that are often used to narrow the list of candidate residues, including residue evolutionary conservation, 3D clustering, solvent accessibility, and hydrophilicity. ResBoost builds on two methods from machine learning, the AdaBoost algorithm and Alternating Decision Trees, and provides precise control over the inherent trade-off between sensitivity and specificity. We evaluated ResBoost using cross-validation on a dataset of 100 enzymes from the hand-curated Catalytic Site Atlas (CSA. Conclusion ResBoost achieved 85% sensitivity for a 9.8% false positive rate and 73% sensitivity for a 5.7% false positive rate. ResBoost reduces the number of false positives by up to 56% compared to the use of evolutionary conservation scoring alone. We also illustrate the ability of ResBoost to identify recently validated catalytic residues not listed in the CSA.

  2. Cosmological viability conditions for f(T) dark energy models

    Energy Technology Data Exchange (ETDEWEB)

    Setare, M.R.; Mohammadipour, N., E-mail: rezakord@ipm.ir, E-mail: N.Mohammadipour@uok.ac.ir [Department of Science, University of Kurdistan, Sanandaj (Iran, Islamic Republic of)

    2012-11-01

    Recently f(T) modified teleparallel gravity where T is the torsion scalar has been proposed as the natural gravitational alternative for dark energy. We perform a detailed dynamical analysis of these models and find conditions for the cosmological viability of f(T) dark energy models as geometrical constraints on the derivatives of these models. We show that in the phase space exists two cosmologically viable trajectory which (i) The universe would start from an unstable radiation point, then pass a saddle standard matter point which is followed by accelerated expansion de sitter point. (ii) The universe starts from a saddle radiation epoch, then falls onto the stable matter era and the system can not evolve to the dark energy dominated epoch. Finally, for a number of f(T) dark energy models were proposed in the more literature, the viability conditions are investigated.

  3. Proliferation of reticuloendothelial system (RES) in rats with altered vision or smell (to the hypothetic neural regulation of the RES).

    Science.gov (United States)

    Jansa, P; Urbánek, K; Riegrová, D

    1993-12-01

    A long-term administration of an azo-dye, trypan blue, induced a reactive proliferation of RES in rats. Reaction of the RES was followed in rats whose optical analyzer was eliminated by enucleation of bulbs after the birth, in rats whose smell analyzer was altered by a repeated long-term exposition to ammoniac and in normal rats. Blind rats showed a striking proliferation of histiocytes of the RES in the liver, while the reaction was weak in the spleen and lymph nodes. In contrary to that, rats with altered smell and also the normal rats exhibited standard reactive changes in the spleen and lymph nodes and distinctly weaker reaction in the liver. The obtained results support an idea that vegetative neural mechanisms play a role in control and coordination of RES reactions.

  4. Re-conceptualizing mother tongue tuition of Estonian abroad as a transnational phenomenon

    Directory of Open Access Journals (Sweden)

    Maarja Siiner

    2017-05-01

    Full Text Available The governmental initiative called the Compatriots Programme, which supports language tuition in Estonian schools and societies abroad, reveals an increased interest in developing intergenerational language transmission in the growing Estonian diaspora. This transnational language political activity signals a new era in language policy, where nation states are increasingly decentralized by migration. The evaluation of the program furthermore reveals that organizing such schools requires a willingness to take language political agency, typically conducted by well-educated and well-integrated resourceful transnational multilingual parents. The present article outlines the results of an ethnographic study of the process of establishing the Estonian School in Copenhagen. This step has demanded a change in the mindset still prevailing in Estonia that language political activities, such as planning language acquisition, are solely the responsibility of the state. Since the prevailing language ideology in Denmark is not favorable towards multilingualism in migrant languages, intergenerational language transmission furthermore presupposes a feeling of ownership of the language and high language self-esteem. "Hargmaise keelepoliitika sünd. Eesti keeleõppe korraldamise võimalikkusest välismaal Taani näitel" Hargmaisus, kasvav väljarändajate arv ja sellega ka eesti keele rääkijate hulk välismaal on jätnud oma jälje eesti keelepoliitikale. Kui varem uuriti peamiselt seda, kuidas eesti keel muukeelses kontekstis muutub, siis viimasel kümnendil on riik asunud aktiivselt toetama eesti keele jätkuvat kasutamist välismaal, rahastades rahvuskaaslaste programmi abil haridusprogramme. Kuid millised faktorid määravad selle, kas uus eestlaste põlvkond oskab ja tahab eesti keelt rääkida? Artikkel hindab etnograafilises ja sotsiolingvistilises võtmes Kopenhaagenis kolm aastat tegutsenud Eesti Kooli ja Lasteklubi näitel, millised on keelekasutust

  5. Astrophysical flows near f(T) gravity black holes

    Energy Technology Data Exchange (ETDEWEB)

    Ahmed, Ayyesha K.; Jamil, Mubasher [National University of Sciences and Technology (NUST), Department of Mathematics, School of Natural Sciences (SNS), Islamabad (Pakistan); Azreg-Ainou, Mustapha [Baskent University, Baglica Campus, Engineering Faculty, Ankara (Turkey); Bahamonde, Sebastian [University College London, Department of Mathematics, London (United Kingdom); Capozziello, Salvatore [Universita di Napoli ' ' Federico II' ' , Dipartimento di Fisica, Naples (Italy); Gran Sasso Science Institute (INFN), L' Aquila (Italy); INFN Sezione di Napoli, Naples (Italy)

    2016-05-15

    In this paper, we study the accretion process for fluids flowing near a black hole in the context of f(T) teleparallel gravity. Specifically, by performing a dynamical analysis by a Hamiltonian system, we are able to find the sonic points. After that, we consider different isothermal test fluids in order to study the accretion process when they are falling onto the black hole. We find that these flows can be classified according to the equation of state and the black hole features. Results are compared in f(T) and f(R) gravity. (orig.)

  6. Violation of causality in f(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Otalora, G. [Pontificia Universidad Catolica de Valparaiso, Instituto de Fisica, Valparaiso (Chile); Reboucas, M.J. [Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, RJ (Brazil)

    2017-11-15

    In the standard formulation, the f(T) field equations are not invariant under local Lorentz transformations, and thus the theory does not inherit the causal structure of special relativity. Actually, even locally violation of causality can occur in this formulation of f(T) gravity. A locally Lorentz covariant f(T) gravity theory has been devised recently, and this local causality problem seems to have been overcome. The non-locality question, however, is left open. If gravitation is to be described by this covariant f(T) gravity theory there are a number of issues that ought to be examined in its context, including the question as to whether its field equations allow homogeneous Goedel-type solutions, which necessarily leads to violation of causality on non-local scale. Here, to look into the potentialities and difficulties of the covariant f(T) theories, we examine whether they admit Goedel-type solutions. We take a combination of a perfect fluid with electromagnetic plus a scalar field as source, and determine a general Goedel-type solution, which contains special solutions in which the essential parameter of Goedel-type geometries, m{sup 2}, defines any class of homogeneous Goedel-type geometries. We show that solutions of the trigonometric and linear classes (m{sup 2} < 0 and m = 0) are permitted only for the combined matter sources with an electromagnetic field matter component. We extended to the context of covariant f(T) gravity a theorem which ensures that any perfect-fluid homogeneous Goedel-type solution defines the same set of Goedel tetrads h{sub A}{sup μ} up to a Lorentz transformation. We also showed that the single massless scalar field generates Goedel-type solution with no closed time-like curves. Even though the covariant f(T) gravity restores Lorentz covariance of the field equations and the local validity of the causality principle, the bare existence of the Goedel-type solutions makes apparent that the covariant formulation of f(T) gravity

  7. Organic Scintillator Detector Response Simulations with DRiFT

    Energy Technology Data Exchange (ETDEWEB)

    Andrews, Madison Theresa [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Bates, Cameron Russell [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Mckigney, Edward Allen [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Rising, Michael Evan [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Pinilla, Maria Isabel [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Solomon, Jr., Clell Jeffrey [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Sood, Avneet [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-12-19

    Accurate detector modeling is a requirement to design systems in many non-proliferation scenarios; by determining a Detector’s Response Function (DRF) to incident radiation, it is possible characterize measurements of unknown sources. DRiFT is intended to post-process MCNP® output and create realistic detector spectra. Capabilities currently under development include the simulation of semiconductor, gas, and (as is discussed in this work) scintillator detector physics. Energy spectra and pulse shape discrimination (PSD) trends for incident photon and neutron radiation have been reproduced by DRiFT.

  8. Generalized second law of thermodynamics in f(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Karami, K.; Abdolmaleki, A., E-mail: KKarami@uok.ac.ir, E-mail: AAbdolmaleki@uok.ac.ir [Department of Physics, University of Kurdistan, Pasdaran St., Sanandaj (Iran, Islamic Republic of)

    2012-04-01

    We investigate the validity of the generalized second law (GSL) of gravitational thermodynamics in the framework of f(T) modified teleparallel gravity. We consider a spatially flat FRW universe containing only the pressureless matter. The boundary of the universe is assumed to be enclosed by the Hubble horizon. For two viable f(T) models containing f(T) = T+μ{sub 1}((−T)){sup n} and f(T) = T−μ{sub 2}T(1−e{sup βT{sub 0}/T}), we first calculate the effective equation of state and deceleration parameters. Then, (we investigate the null and strong energy conditions and conclude that a sudden future singularity appears in both models. Furthermore, using a cosmographic analysis we check the viability of two models. Finally, we examine the validity of the GSL and find that for both models it) is satisfied from the early times to the present epoch. But in the future, the GSL is violated for the special ranges of the torsion scalar T.

  9. Determination of cellulose I crystallinity by FT-Raman spectroscopy

    Science.gov (United States)

    Umesh P. Agarwal; Richard S. Reiner; Sally A. Ralph

    2009-01-01

    Two new methods based on FT-Raman spectroscopy, one simple, based on band intensity ratio, and the other, using a partial least-squares (PLS) regression model, are proposed to determine cellulose I crystallinity. In the simple method, crystallinity in semicrystalline cellulose I samples was determined based on univariate regression that was first developed using the...

  10. FT-Raman study of dehydrogenation polymer (DHP) lignins

    Science.gov (United States)

    Umesh P. Agarwal; Noritsugu Terashima

    2003-01-01

    Compared to conventional Raman spectroscopy where samples are excited using visible light lasers, 1064 nm-excited FT-Raman technique has the single most important advantage that the sample-fluorescence is significantly suppressed for samples that are strongly fluorescent. DHPs are difficult to analyze in conventional Raman because small amounts of chromophores present...

  11. FT-IR, NMR SPECTROSCOPIC and QUANTUM MECHANICAL ...

    African Journals Online (AJOL)

    FT-IR, NMR SPECTROSCOPIC and QUANTUM MECHANICAL. INVESTIGATIONS OF TWO FERROCENE DERIVATIVES. Özgür Alver1* and Cemal Parlak2. 1Department of Physics, Science Faculty, Anadolu University, Eskişehir, 26470, Turkey. 2Department of Physics, Science Faculty, Ege University, İzmir, 35100, ...

  12. Model Legislation on Student Residency. An Act Providing for Classification of Students for Tuition Purposes at Public Institutions of Higher Education.

    Science.gov (United States)

    Education Commission of the States, Denver, CO.

    On January 26, 1971 the Chairman of the Education Commission of the States issued a statement of principles and possible model legislation for the various states in the highly complex area of determination of student residency for tuition purposes at public institutions of higher education. The original model legislation was related to the…

  13. Federal Student Loans: Patterns in Tuition, Enrollment, and Federal Stafford Loan Borrowing up to the 2007-08 Loan Limit Increase. GAO-11-470R

    Science.gov (United States)

    Scott, George A.

    2011-01-01

    Although a postsecondary education is vitally important to many individuals and the nation's ability to compete globally, high college tuition rates are prompting concerns that it may remain an elusive goal for some. To help students finance their education, Congress recently raised the ceiling on the amount individual students can borrow under…

  14. Slight Decline in Use of Private School Tuition Vouchers in 2010-2011: Loss of Schools Results in Fewer Students. Research Brief. Volume 99, Number 2

    Science.gov (United States)

    Dickman, Anneliese; Schmidt, Jeffrey

    2011-01-01

    For the first time since its 1998 expansion to include religious schools, enrollment in the Milwaukee Parental Choice Program (MPCP) did not grow in the 2010-2011 school year. Currently, 20,996 private school students receive taxpayer-funded tuition vouchers (of $6,442 per pupil), a decrease of 66 students over last year. Chart 1 shows program…

  15. Electricity market models and RES integration: The Greek case

    International Nuclear Information System (INIS)

    Simoglou, Christos K.; Biskas, Pandelis N.; Vagropoulos, Stylianos I.; Bakirtzis, Anastasios G.

    2014-01-01

    This paper presents an extensive analysis of the Greek electricity market for the next 7-year period (2014–2020) based on an hour-by-hour simulation considering five different RES technologies, namely wind, PV, small hydro, biomass and CHP with emphasis on PV integration. The impact of RES penetration on the electricity market operation is evaluated under two different models regarding the organization of the Greek wholesale day-ahead electricity market: a mandatory power pool for year 2014 (current market design) and a power exchange for the period 2015–2020 (Target Model). An integrated software tool is used for the simulation of the current and the future day-ahead market clearing algorithm of the Greek wholesale electricity market. Simulation results indicate the impact of the anticipated large-scale RES integration, in conjunction with each market model, on specific indicators of the Greek electricity market in the long-term. - Highlights: • Analysis of the Greek electricity market for the next 7-year period (2014–2020) based on hour-by-hour simulation. • Five different RES technologies are considered with emphasis on PV integration. • A power pool (for 2014) and a power exchange (for 2015–2020) are considered. • Various market indicators are used for the analysis of the impact of the RES integration on the Greek electricity market. • Two alternative tariff schemes for the compensation of the new ground-mounted PV units from 2015 onwards are investigated

  16. Comparison of New Tau PET-Tracer Candidates With [18F]T808 and [18F]T807

    Directory of Open Access Journals (Sweden)

    Lieven Declercq Pharmacist

    2016-01-01

    Full Text Available Early clinical results of two tau tracers, [18F]T808 and [18F]T807, have recently been reported. In the present study, the biodistribution, radiometabolite quantification, and competition-binding studies were performed in order to acquire comparative preclinical data as well as to establish the value of T808 and T807 as benchmark compounds for assessment of binding affinities of eight new/other tau tracers. Biodistribution studies in mice showed high brain uptake and fast washout. In vivo radiometabolite analysis using high-performance liquid chromatography showed the presence of polar radiometabolites in plasma and brain. No specific binding of [18F]T808 was found in transgenic mice expressing mutant human P301L tau. In semiquantitative autoradiography studies on human Alzheimer disease slices, we observed more than 50% tau selective blocking of [18F]T808 in the presence of 1 µmol/L of the novel ligands. This study provides a straightforward comparison of the binding affinity and selectivity for tau of the reported radiolabeled tracers BF-158, BF-170, THK5105, lansoprazole, astemizole, and novel tau positron emission tomography ligands against T807 and T808. Therefore, these data are helpful to identify structural requirements for selective interaction with tau and to compare the performance of new highly selective and specific radiolabeled tau tracers.

  17. Technical Capability Upgrades to the NASA Langley Research Center 8 ft. by 15 ft. Thermal Vacuum Chamber

    Science.gov (United States)

    Thornblom, Mark N.; Beverly, Joshua; O'Connell, Joseph J.; Duncan, Dwight L.

    2016-01-01

    The 8 ft. by 15 ft. thermal vacuum chamber (TVAC), housed in Building 1250 at the NASA Langley Research Center (LaRC), and managed by the Systems Integration and Test Branch within the Engineering Directorate, has undergone several significant modifications to increase testing capability, safety, and quality of measurements of articles under environmental test. Significant modifications include: a new nitrogen distribution manifold for supplying the shroud and other cold surfaces to liquid nitrogen temperatures; a new power supply and distribution system for accurately controlling a quartz IR lamp suite; a suite of contamination monitoring sensors for outgassing measurements and species identification; a new test article support system; signal and power feed-throughs; elimination of unnecessary penetrations; and a new data acquisition and control commanding system including safety interlocks. This paper will provide a general overview of the LaRC 8 ft. by 15 ft. TVAC chamber, an overview of the new technical capabilities, and will illustrate each upgrade in detail, in terms of mechanical design and predicted performance. Additionally, an overview of the scope of tests currently being performed in the chamber will be documented, and sensor plots from tests will be provided to show chamber temperature and pressure performance with actual flight hardware under test.

  18. Video-based instructions for surgical hand disinfection as a replacement for conventional tuition? A randomised, blind comparative study

    Directory of Open Access Journals (Sweden)

    Weber, Uwe

    2016-08-01

    Full Text Available Introduction: Various different learning methods are available for planning tuition regarding the introduction to surgical hand disinfection. These learning methods should help to organise and deal with this topic. The use of a video film is an alternative to conventional tuition due to the real presentation possibilities of practical demonstration. Objective: This study examines by way of comparison which form of communication is more effective for learning and applying surgical hand disinfection for medical students in their first year of studies: video-based instruction or conventional tuition. Methodology: A total of 50 first-year medical students were randomly allocated either to the “Conventional Instruction” (CI study group or to the “Video-based Instruction” (VI study group. The conventional instruction was carried out by an experienced nurse preceptor/nurse educator for the operating theatre who taught the preparatory measures and the actual procedure in a two-minute lesson. The second group watched a two-minute video sequence with identical content. Afterwards, both groups demonstrated practically the knowledge they had acquired at an individual practical test station. The quality (a of the preparation and (b of the procedure as well as (c the quality of the results was assessed by 6 blind experts using a check list. The acceptability of the respective teaching method was also asked about using a questionnaire.Results: The group performance did not differ either in the preparation (=-78, <0.44 or in the quality (=-99, <0.34. With respect to performance, it was possible to demonstrate a strong treatment effect. In the practical (=-3.33, <0.002, =0.943 and in the total score (=-2.65, <0.011, =0.751, the group with video-based instruction achieved a significantly better result. In response to the question as to which of the two learning methods they would prefer, the significant majority (60.4% of students stated video instruction

  19. The spectroscopic (FT-IR, FT-IR gas phase, FT-Raman and UV) and NBO analysis of 4-Hydroxypiperidine by density functional method.

    Science.gov (United States)

    Sebastian, S; Sundaraganesan, N

    2010-03-01

    In this work, we report a combined experimental and theoretical study on molecular structure, vibrational spectra, NBO and UV-spectral analysis of 4-Hydroxypiperidine (4-HP). The FT-IR solid phase (4000-400 cm(-1)), FT-IR gas phase (5000-400 cm(-1)) and FT-Raman spectra (3500-50 cm(-1)) of 4-HP was recorded. The molecular geometry, harmonic vibrational frequencies and bonding features of 4-HP in the ground-state have been calculated by using the density functional methods (BLYP, B3LYP) with 6-311G (d,p) as basis set. The assignments of the vibrational spectra have been carried out with the help of normal co-ordinate analysis (NCA) following the Scaled Quantum Mechanical Force Field Methodology (SQMFF). Stability of the molecule arising from hyperconjugative interactions, charge delocalization has been analyzed using natural bond orbital (NBO) analysis. The results show that charge in electron density (ED) in the sigma* antibonding orbitals and E (2) energies confirms the occurrence of ICT (Intra-molecular Charge Transfer) within the molecule. The UV spectrum was measured in ethanol solution. The energy and oscillator strength calculated by Time-Dependent Density Functional Theory (TD-DFT) result complements the experimental findings. The calculated HOMO and LUMO energies show that charge transfer occurs within the molecule. Finally the calculation results were applied to simulated infrared and Raman spectra of the title compound which show good agreement with observed spectra. Copyright 2009 Elsevier B.V. All rights reserved.

  20. Isolation and functional characterization of JcFT, a FLOWERING LOCUS T (FT) homologous gene from the biofuel plant Jatropha curcas.

    Science.gov (United States)

    Li, Chaoqiong; Luo, Li; Fu, Qiantang; Niu, Longjian; Xu, Zeng-Fu

    2014-05-08

    Physic nut (Jatropha curcas L.) is a potential feedstock for biofuel production because Jatropha oil is highly suitable for the production of the biodiesel and bio-jet fuels. However, Jatropha exhibits low seed yield as a result of unreliable and poor flowering. FLOWERING LOCUS T (FT) -like genes are important flowering regulators in higher plants. To date, the flowering genes in Jatropha have not yet been identified or characterized. To better understand the genetic control of flowering in Jatropha, an FT homolog was isolated from Jatropha and designated as JcFT. Sequence analysis and phylogenetic relationship of JcFT revealed a high sequence similarity with the FT genes of Litchi chinensis, Populus nigra and other perennial plants. JcFT was expressed in all tissues of adult plants except young leaves, with the highest expression level in female flowers. Overexpression of JcFT in Arabidopsis and Jatropha using the constitutive promoter cauliflower mosaic virus 35S or the phloem-specific promoter Arabidopsis SUCROSE TRANSPORTER 2 promoter resulted in an extremely early flowering phenotype. Furthermore, several flowering genes downstream of JcFT were up-regulated in the JcFT-overexpression transgenic plant lines. JcFT may encode a florigen that acts as a key regulator in flowering pathway. This study is the first to functionally characterize a flowering gene, namely, JcFT, in the biofuel plant Jatropha.

  1. Evolutionary trajectories of duplicated FT homologues and their roles in soybean domestication.

    Science.gov (United States)

    Wu, Faqiang; Sedivy, Eric J; Price, William Brian; Haider, Waseem; Hanzawa, Yoshie

    2017-06-01

    To clarify the molecular bases of flowering time evolution in crop domestication, here we investigate the evolutionary fates of a set of four recently duplicated genes in soybean: FT2a, FT2b, FT2c and FT2d that are homologues of the floral inducer FLOWERING LOCUS T (FT). While FT2a maintained the flowering inducer function, other genes went through contrasting evolutionary paths. FT2b evolved attenuated expression potentially associated with a transposon insertion in the upstream intergenic region, while FT2c and FT2d obtained a transposon insertion and structural rearrangement, respectively. In contrast to FT2b and FT2d whose mutational events occurred before the separation of G. max and G. soja, the evolution of FT2c is a G. max lineage specific event. The FT2c allele carrying a transposon insertion is nearly fixed in soybean landraces and differentiates domesticated soybean from wild soybean, indicating that this allele spread at the early stage of soybean domestication. The domesticated allele causes later flowering than the wild allele under short day and exhibits a signature of selection. These findings suggest that FT2c may have underpinned the evolution of photoperiodic flowering regulation in soybean domestication and highlight the evolutionary dynamics of this agronomically important gene family. © 2017 The Authors The Plant Journal © 2017 John Wiley & Sons Ltd.

  2. Applications of FT-IR spectrophotometry in cancer diagnostics.

    Science.gov (United States)

    Bunaciu, Andrei A; Hoang, Vu Dang; Aboul-Enein, Hassan Y

    2015-01-01

    This review provides a brief background to the application of infrared spectroscopy, including Fourier transform-infrared spectroscopy, in biological fluids. It is not meant to be complete or exhaustive but to provide the reader with sufficient background for selected applications in cancer diagnostics. Fourier transform-infrared spectroscopy (FT-IR) is a fast and nondestructive analytical method. The infrared spectrum of a mixture serves as the basis to quantitate its constituents, and a number of common clinical chemistry tests have proven to be feasible using this approach. This review focuses on biomedical FT-IR applications, published in the period 2009-2013, used for early detection of cancer through qualitative and quantitative analysis.

  3. In vivo release of FT-207 from irradiation polymerized composites

    International Nuclear Information System (INIS)

    Xie Huaijiang; Kou Qinghe; Song Juzhong; Peng Tao; Chen Xiaohui; Zhang Dexi

    1999-01-01

    Polymer-drugs composite with long periods of controlled slow release was made by radiation induced polymerization in room temperature. In experiment in vivo, the composite was implanted subcutaneously the back of rabbits. The concentration of 1-(2-tetrahydrofuryl)-5-fluorouracil (FT-207) was determined by HPLC. The results of test showed that the concentration of serum drug is 1.0 μg/mL after 1 week in the polymer-drug composites group. The drug concentration of tissue surrounding the composites is 76.2 +- 10.4 μg/mL. The drug concentration in the far organ (e.g.the lung 1.2 +- 0.5 μg/mL) is lower than the tissue surrounding the composite. The serum drug is higher and shorter time by the routine methods. The serum concentration of FT-207 is lower an retarded by implanted

  4. FT-NIR: A Tool for Process Monitoring and More.

    Science.gov (United States)

    Martoccia, Domenico; Lutz, Holger; Cohen, Yvan; Jerphagnon, Thomas; Jenelten, Urban

    2018-03-30

    With ever-increasing pressure to optimize product quality, to reduce cost and to safely increase production output from existing assets, all combined with regular changes in terms of feedstock and operational targets, process monitoring with traditional instruments reaches its limits. One promising answer to these challenges is in-line, real time process analysis with spectroscopic instruments, and above all Fourier-Transform Near Infrared spectroscopy (FT-NIR). Its potential to afford decreased batch cycle times, higher yields, reduced rework and minimized batch variance is presented and application examples in the field of fine chemicals are given. We demonstrate that FT-NIR can be an efficient tool for improved process monitoring and optimization, effective process design and advanced process control.

  5. Logamediate Inflation in f(T) Teleparallel Gravity

    Science.gov (United States)

    Rezazadeh, Kazem; Abdolmaleki, Asrin; Karami, Kayoomars

    2017-02-01

    We study logamediate inflation in the context of f(T) teleparallel gravity. f(T)-gravity is a generalization of the teleparallel gravity which is formulated on the Weitzenbock spacetime, characterized by the vanishing curvature tensor (absolute parallelism) and the non-vanishing torsion tensor. We consider an f(T)-gravity model which is sourced by a canonical scalar field. Assuming a power-law f(T) function in the action, we investigate an inflationary universe with a logamediate scale factor. Our results show that, although logamediate inflation is completely ruled out by observational data in the standard inflationary scenario based on Einstein gravity, it can be compatible with the 68% confidence limit joint region of Planck 2015 TT,TE,EE+lowP data in the framework of f(T)-gravity.

  6. Vibrational microspectroscopy of food. Raman vs. FT-IR

    DEFF Research Database (Denmark)

    Thygesen, Lisbeth Garbrecht; Løkke, Mette Marie; Micklander, Elisabeth

    2003-01-01

    FT-IR and Raman spectroscopy are complementary techniques for the study of molecular vibrations and structure. The combination with a microscope results in an analytical method that allows spatially resolved investigation of the chemical composition of heterogeneous foods and food ingredients...... to different heterogeneous food systems. FT-IR and Raman microspectroscopy were applied to a number of different problems related to food analysis: (1) in situ determination of starch and pectin in the potato cell, (2) in situ determination of the distribution of amygdalin in bitter almonds, (3......) the composition of blisters found on the surface of bread, (4) the microstructure of high-lysine barley and (5) the composition of white spots in the shell of frozen shrimps. (C) 2003 Elsevier Science Ltd. All rights reserved....

  7. Constraining f(T) gravity in the Solar System

    Energy Technology Data Exchange (ETDEWEB)

    Iorio, Lorenzo [Ministero dell' Istruzione dell' Università e della Ricerca (M.I.U.R), Viale Unità di Italia 68, 70125 Bari (Italy); Radicella, Ninfa [Dipartimento di Fisica E.R. Caianiello, Università di Salerno, Via Giovanni Paolo II 132, Fisciano (Italy); Ruggiero, Matteo Luca, E-mail: lorenzo.iorio@libero.it, E-mail: ninfa.radicella@sa.infn.it, E-mail: matteo.ruggiero@polito.it [DISAT, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino (Italy)

    2015-08-01

    In the framework of f(T) theories of gravity, we solve the field equations for f(T)=T+α T{sup n} in the weak-field approximation and for spherical symmetry spacetime. Since f(T)=T corresponds to Teleparallel Gravity, which is equivalent to General Relativity, the non linearity of the Lagrangian are expected to produce perturbations of the general relativistic solutions, parameterized by α. Hence, we use the f(T) solutions to model the gravitational field of the Sun and exploit data from accurate radio-tracking of spacecrafts orbiting Mercury and Saturn to infer preliminary bounds on the model parameter α and on the cosmological constant Λ.

  8. Laser Spark Formamide Decomposition Studied by FT-IR Spectroscopy

    Czech Academy of Sciences Publication Activity Database

    Ferus, Martin; Kubelík, Petr; Civiš, Svatopluk

    2011-01-01

    Roč. 115, č. 44 (2011), s. 12132-12141 ISSN 1089-5639 R&D Projects: GA AV ČR IAA400400705; GA AV ČR IAAX00100903; GA ČR GAP208/10/2302 Institutional research plan: CEZ:AV0Z40400503 Keywords : FT-IR spectroscopy * high-power laser * induced dielectric-breakdown Subject RIV: CF - Physical ; Theoretical Chemistry Impact factor: 2.946, year: 2011

  9. Generalized Noether symmetry in f(T) gravity

    International Nuclear Information System (INIS)

    Mohseni Sadjadi, H.

    2012-01-01

    We consider modified teleparallel gravity (f(T) gravity), as a framework to explain the present accelerated expansion of the universe. The matter component is assumed to be cold dark matter. To find the explicit form of the function f, we utilize generalized Noether theorem and use generalized vector fields as variational symmetries of the corresponding Lagrangian. We study the cosmological consequences of the obtained results.

  10. Wormholes in a viable f(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Jamil, Mubasher [National University of Sciences and Technology (NUST), Center for Advanced Mathematics and Physics (CAMP), Islamabad (Pakistan); Eurasian National University, Eurasian International Center for Theoretical Physics, Astana (Kazakstan (Kazakhstan)); Momeni, Davood; Myrzakulov, Ratbay [Eurasian National University, Eurasian International Center for Theoretical Physics, Astana (Kazakstan (Kazakhstan))

    2013-01-15

    In this paper, we derive some new exact solutions of static wormholes in f(T) gravity. We discuss independent cases of the pressure components including isotropic and anisotropic pressure. Lastly we consider radial pressure satisfying a barotropic equation of state. We also check the behavior of null energy condition (NEC) for each case and observe that it is violated for the anisotropic case, while it is satisfied for isotropic and barotropic cases. (orig.)

  11. Technology development for iron F-T catalysts. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Frame, R.R.; Gala, H.B.

    1994-08-01

    The objectives of this work were twofold. The first objective was to design and construct a pilot plant for preparing precipitated iron oxide F-T precursors and demonstrate that the rate of production from this plant is equivalent to 100 lbs/day of dried metal oxide. Secondly, these precipitates were to be used to prepare catalysts capable of achieving 88% CO + H{sub 2} conversion with {le} 5 mole percent selectivity to methane + ethane.

  12. Review of log ft values in β decay

    International Nuclear Information System (INIS)

    Singh, B.; Rodriguez, J.L.; Wong, S.S.M.; Tuli, J.K.

    1998-01-01

    The log ft values for all β decay branches (β-, β+, ε) have been retrieved from the Evaluated Nuclear Structure Data File (ENSDF--August 1997 version) and reviewed. Only those cases where the β transition occurs between levels of firmly assigned Jπ values (consistent with strong rules for Jπ assignments as given in policies of Nuclear Data Sheets), have been considered in this review. Weak β branches (≤1%) in complex decay schemes have been omitted. Some new values from recent literature have also been added. Out of a total of about 20,000 β transitions reported in ENSDF, about 3,900 are presented in this review. A similar complete review was last done by 63G1ZZ where about 900 transitions were considered, which included weak transitions as well as those between levels of tentative jπ assignments. The ft values in β decay, spanning about 21 orders of magnitude, have been classified into allowed and forbidden categories according to the classification scheme of Konopinski (43Ko08). Centroid, width, minimum and maximum values for each category have been calculated here. Lower limits for first and second forbidden transitions in the present review have been compared to those given in the review by Raman and Gove (73Ra10) which contained about 160 selected log ft values

  13. Thermodynamics and cosmological reconstruction in f(T , B) gravity

    Science.gov (United States)

    Bahamonde, Sebastian; Zubair, M.; Abbas, G.

    2018-03-01

    Recently, it was formulated a teleparallel theory called f(T , B) gravity which connects both f(T) and f(R) under suitable limits. In this theory, the function in the action is assumed to depend on the torsion scalar T and also on a boundary term related with the divergence of torsion, B = 2∇μTμ. In this work, we study different features of a flat Friedmann-Lemaître-Robertson-Walker (FLRW) cosmology in this theory. First, we show that the FLRW equations can be transformed to the form of Clausius relation TˆhSeff = - dE + WdV, where Tˆh is the horizon temperature and Seff is the entropy which contains contributions both from horizon entropy and an additional entropy term introduced due to the non-equilibrium. We also formulate the constraint for the validity of the generalised second law of thermodynamics (GSLT). Additionally, using a cosmological reconstruction technique, we show that both f(T , B) and - T + F(B) gravity can mimic power-law, de-Sitter and ΛCDM models. Finally, we formulate the perturbed evolution equations and analyse the stability of some important cosmological solutions.

  14. Applicability of the doctrine of Res Ipsa Loquitur in medical ...

    African Journals Online (AJOL)

    However, majority of medical negligence/malpractice cases are difficult to prove by the plaintiff, hence, the latter relies on the doctrine of Res Ipsa Loquitur which shifts the onus of proof to the defendant. Thus, this paper examines the elements of negligence in tort; and medical negligence; the concepts of vicarious liability, ...

  15. Pettumus Res Publicas algas kirikus antud vandest / Margus Tsahkna

    Index Scriptorium Estoniae

    Tsahkna, Margus, 1977-

    2005-01-01

    Autori sõnul on Res Publica petnud inimeste põhiväärtustele tuginevaid ootusi, Eesti riik kaugeneb kodanikust ja tema elulistest huvidest. Isamaaliit paneb ette asuda tegelike probleemide lahendamisele ning kutsub erakondi üles kaitsma rahvuslikke huve

  16. Medical negligence and res ipsa loquitur in South Africa | Patel ...

    African Journals Online (AJOL)

    The inter-relationship between Medicine and Law is most commonly brought to the fore by cases involving medical negligence. This relationship needs to protect all parties concerned based on the probability of reasonableness in terms of who performs the act as well as the patient affected by the act in question. The res ...

  17. Reinsalu : Res Publica lisab kiirust / Urmas Reinsalu ; interv. Lauri Tankler

    Index Scriptorium Estoniae

    Reinsalu, Urmas, 1975-

    2004-01-01

    Ilmunud ka: Võta Võim : na russkom jazõke, 28. apr. 2004, lk. 4. Res Publica esikandidaat Urmas Reinsalu erakonna valimiskampaania eesmärkidest, võimalustest nende eesmärkide saavutamiseks ja erakonna valimisprogrammi ning kandidaatide eelistest konkurentide ees

  18. Manufactured Residential Utility Wall System (ResCore),

    Energy Technology Data Exchange (ETDEWEB)

    Wendt, Robert [Oak Ridge National Lab., TN (United States); Lundell, Clark; Lau, Tin Man [Auburn Univ., AL (United States)

    1997-12-31

    This paper describes the design and development of a manufactured residential utility wall system referred to as ResCore. ResCore is a self contained, manufactured, residential utility wall that provides complete rough-in of utilities (power, gas, water, and phone) and other functions (exhaust, combustion make-up air, refrigerant lines, etc.) to serve the kitchen, bath, utility, and laundry rooms. Auburn University, Department of Industrial Design faculty, students, supported by a team of graduate student researchers and the project`s advisory team, developed the ResCore. The project was accomplished through a research subcontract from the U.S. Department of Energy administered by the Oak Ridge National Laboratory. The ResCore wall system features a layered manufacturing technique that allows each major component group: structural, cold water, hot water, drain, gas, electric, etc. to be built as a separate subassembly and easily brought together for final assembly. The two structural layers are reinforced with bridging that adds strength and also permits firm attachment of plumbing pipes and other systems to the wall frame.

  19. Manufactured residential utility wall system (ResCore), overview

    Energy Technology Data Exchange (ETDEWEB)

    Wendt, R. [Oak Ridge National Lab., TN (United States); Lundell, C.; Lau, T.M. [Auburn Univ., AL (United States)

    1997-05-01

    This paper provides an overview of the design and development of a manufactured residential utility wall system referred to as ResCore. ResCore is a self-contained, manufactured, residential utility wall that provides complete rough-in of utilities (power, gas, water, and phone) and other functions (exhaust, combustion make-up air, refrigerant lines, etc.) to serve the residential kitchen, bath, utility, and laundry rooms. Auburn University, Department of Industrial Design faculty and students, supported by a team of graduate student researchers and the project`s advisory team, developed the ResCore. The project was accomplished through a research subcontract from the US Department of Energy administered by the Oak Ridge National Laboratory. The ResCore wall system features a ``layered`` manufacturing technique that allows each major component group--structural, cold water, hot water, drain, gas, electric, etc.--to be built as a separate subassembly and easily brought together for final assembly. The two structural layers are reinforced with bridging that adds strength and also permits firm attachment of plumbing pipes and other systems to the wall frame.

  20. Au Cern, premières collisions de protons hier

    CERN Multimedia

    Galeazzi, Juliette

    2009-01-01

    "Hier, les scientifiques du monde entier ont salué le redémarrage du LHC, grand collisionneur de hadrons, au Cern à Genève. Après quatorze mois d'arrêt, à la suite d'une panne, les expériences ont pris et les premières collisions ont eu lieu" (2 pages)

  1. Res Publica : Don Kihhot pobedil Karlsona / Jevgenija Garanzha

    Index Scriptorium Estoniae

    Garanža, Jevgenija, 1979-

    2005-01-01

    Res Publica esimeesteks kandideerinud Taavi Veskimägi ja Jaanus Rahumägi tutvustasid erakonna üldkogul oma programmi. Uus juht Taavi Veskimägi võttis partei üle 4 protsendilise reitinguga, põhimõtted kohalikeks valimisteks valmistumisel

  2. Resúmenes Presentaciones de Pósteres

    Directory of Open Access Journals (Sweden)

    Editor Gabriel Vargas Arana

    2015-12-01

    Full Text Available En este artículo se pueden encontrar los resúmenes de las presentaciones de pósteres del III Congreso Latinoamericano de Plantas Medicinales, desarrollado del 12 al 14 de agosto de 2015 en la ciudad de Iquitos, Perú.

  3. Res Publica asutaja Taal asus Reiljani poolele / Tuuli Koch

    Index Scriptorium Estoniae

    Koch, Tuuli

    2006-01-01

    Ilmunud ka: Postimees : na russkom jazõke 16. veebr. lk. 2. Opositsiooni poolt Riigikogus läbi viidud umbusaldus keskkonnaminister Villu Reiljani vastu ei kogunud piisavalt hääli. Umbusalduse põhjuseks tõid Isamaaliit ja Res Publica puuduliku ettevalmistuse merereostusega tegelemiseks, selle tulemusena tekkinud infosulu ning valitsuse täieliku tegevusetuse reostuse ilmnemisel

  4. 167 APPLICABILITY OF THE DOCTRINE OF RES IPSA LOQUITUR ...

    African Journals Online (AJOL)

    Fr. Ikenga

    Keywords: Medical Negligence/Malpractice, Duty of Care, Breach of Duty, Damages, Res Ipsa. Loquitur ... This pathetic story is one out of the numerous medical negligent/malpractice cases encountered by patients ..... and Dental Practitioners in Nigeria, also known as Code of Medical Ethics in Nigeria23 provides for acts.

  5. FT-Raman and FT-Infrared investigations of archaeological artefacts from Foeni Neolithic site (Banat, Romania

    Directory of Open Access Journals (Sweden)

    Simona Cîntă Pînzaru

    2008-08-01

    Full Text Available An impressive collection of chert artefacts from the Foeni Neolithic archaeological site (Timiş County, Banat region, Romania is hosted by the Banat Museum in Timişoara. A representative set of seven specimens was non-destructively investigated using FT-Raman and ATR-FT-IR spectroscopy. The research was carried out for checking if these readily-available, non-destructive, fast, and cheap methods, which do not require preliminary sample preparation could provide significant information for characterizing the mineral composition of chert artefacts. Based on vibrational data, it was confirmed that the raw material was represented by microcrystalline quartz and moganite, with local concentrations of accessory minerals (calcite, dolomite, and clay minerals. In spite of their wide macroscopic heterogeneity (colour, transparency, based on single point FT-Raman measurements the chert artefacts could not be assigned to distinctive groups of raw silica materials, in order to provide specific arguments for provenance studies. However, the presence of specific accessory minerals (dolomite, illite pointed to distinctive genetic conditions in the case of one lithic material. Sets of measurements (mapping are required for statistically characterizing each artefact specimen. IR data were less significant, due to the rough surface texture of the specimens in contact with the ZnSe crystal of the ATR-FT-IR module. However, illite was identified based solely on its contribution to the IR spectrum. This pioneering study on chert artefacts from Romania based on optical spectroscopic methods shows that there are good premises for a systematic investigation of highly-valuable museum collections, in particular in terms of chert geology.

  6. Association between digital dermatoglyphics and handedness among Sinhalese in Sri Lanka [v2; ref status: indexed, http://f1000r.es/1ft

    Directory of Open Access Journals (Sweden)

    Buddhika TB Wijerathne

    2013-07-01

    Full Text Available Background The relationship between handedness and digital dermatoglyphic patterns has never been investigated in the Sinhalese population. The goal of this study is to establish the above mentioned relationship, which would positively aid personal identification.  Findings One hundred forty Sinhalese students (70 right-handed and 70 left-handed were studied for their digital dermatoglyphic pattern distribution. The results show that a statistically significant correlation exists for; digit 5 (Ulnar loop; P= 0.0449 and radial loop; P= 0.0248 by Fisher’s exact test of the right hand in female, digit 1 (radial loop; P=0.0248 by Fisher’s exact test and digit 2 (Ulnar loop; P=0.0306 of the left hand in females, digit 3 (Ulnar loop; P= 0.0486 and whorl; P= 0.0356 by Fisher’s exact test and digit 4 (Ulnar loop; P= 0.0449 and whorl; P= 0.0301 by Fisher’s exact test of the right hand in males, digit 4 (whorl; P=0.0160 by Fisher’s exact test of the left hand in males. Conclusions  Statistically significant differences in handedness and digital dermatoglyphic patterns were evident among Sinhalese people. Further study with a larger sample size is recommended.

  7. VT 10 ft Contour Lines generated from bare earth lidar - Chittenden

    Data.gov (United States)

    Vermont Center for Geographic Information — (Link to Metadata) ElevationContours_CN10T (10ft contours) was extracted from ElevationContours_CN2T (2ft contours), which was generated by USGS from the 2004...

  8. Fourier Transform Infrared Spectroscopy: Part II. Advantages of FT-IR.

    Science.gov (United States)

    Perkins, W. D.

    1987-01-01

    This is Part II in a series on Fourier transform infrared spectroscopy (FT-IR). Described are various advantages of FT-IR spectroscopy including energy advantages, wavenumber accuracy, constant resolution, polarization effects, and stepping at grating changes. (RH)

  9. Promoting flowering, lateral shoot outgrowth, leaf development, and flower abscission in tobacco plants overexpressing cotton FLOWERING LOCUS T (FT)-like gene GhFT1.

    Science.gov (United States)

    Li, Chao; Zhang, Yannan; Zhang, Kun; Guo, Danli; Cui, Baiming; Wang, Xiyin; Huang, Xianzhong

    2015-01-01

    FLOWERING LOCUS T (FT) encodes a mobile signal protein, recognized as major component of florigen, which has a central position in regulating flowering, and also plays important roles in various physiological aspects. A mode is recently emerging for the balance of indeterminate and determinate growth, which is controlled by the ratio of FT-like and TERMINAL FLOWER 1 (TFL1)-like gene activities, and has a strong influence on the floral transition and plant architecture. Orthologs of GhFT1 was previously isolated and characterized from Gossypium hirsutum. We demonstrated that ectopic overexpression of GhFT1 in tobacco, other than promoting flowering, promoted lateral shoot outgrowth at the base, induced more axillary bud at the axillae of rosette leaves, altered leaf morphology, increased chlorophyll content, had higher rate of photosynthesis and caused flowers abscission. Analysis of gene expression suggested that flower identity genes were significantly upregulated in transgenic plants. Further analysis of tobacco FT paralogs indicated that NtFT4, acting as flower inducer, was upregulated, whereas NtFT2 and NtFT3 as flower inhibitors were upregulated in transgenic plants under long-day conditions, but downregulated under short-day conditions. Our data suggests that sufficient level of transgenic cotton FT might disturb the balance of the endogenous tobacco FT paralogs of inducers and repressors and resulted in altered phenotype in transgenic tobacco, emphasizing the expanding roles of FT in regulating shoot architecture by advancing determine growth. Manipulating the ratio for indeterminate and determinate growth factors throughout FT-like and TFL1-like gene activity holds promise to improve plant architecture and enhance crop yield.

  10. Res Publica presidendikandidaatide nimed selguvad neljapäevaks / Rauno Veri, Urmo Kübar

    Index Scriptorium Estoniae

    Veri, Rauno, 1978-

    2006-01-01

    Res Publica, Isamaaliit, Reformierakond, SDE ja Keskerakond otsivad ühist presidendikandidaati, ainsa parlamendierakonnana ei osale läbirääkimistel Rahvaliit. Reformierakonna, SDE presidendikandidaatidest; Res Publica naiskogu ja Väärikate Kogu ühisavaldusest

  11. Res Publica kärbiks võimuorganite koosseise / Argo Ideon

    Index Scriptorium Estoniae

    Ideon, Argo, 1966-

    2002-01-01

    Res Publica taotleb Riigikogu kärpimist 61 liikmeni, lubab kahandada kohalike volikogude koosseise, Tallinna abilinnapeade arvu ja kaotada portfellita ministrite kohad. Vt. samas: Res Publica valimisnimekiri Tallinnas

  12. Res Publica tähistab sünnipäeva konverentsiga / Lauri Tankler

    Index Scriptorium Estoniae

    Tankler, Lauri

    2003-01-01

    Ilmunud ka: Võta Võim : na russkom jazõke 3. dets. lk. 3. Res Publica saab 2-aastaseks, mille puhul korraldatakse konverents "Riik ja Res Publica". Vt. samas: Selle aasta veebruaris said kuldmärgid

  13. Sisetülides Res Publica heitis liidu Keskerakonnaga kõrvale / Urmas Seaver

    Index Scriptorium Estoniae

    Seaver, Urmas, 1973-

    2005-01-01

    Res Publica juhatus otsustas toetada senise koalitsiooni jätkamist Tallinnas. Res Publica ja Reformierakonna täiendatud koalitsioonileppest. Reformierakonna Tallinna piirkonna juhi Keit Pentuse hinnang võimutülile. Lisa: Võimuleppe lisa

  14. Res Publica hakkab kaaluma Kohtla-Järve võimuliidust lahkumist / Erik Gamzejev

    Index Scriptorium Estoniae

    Gamzejev, Erik, 1967-

    2002-01-01

    Ilmunud ka: Severnoje Poberezhje 19. nov. lk. 1. Res Publica eestseisuse ettepanek Kohtla-Järve osakonnale lahkuda koalitsioonist. Osakonna juhatuse otsus esitada Hants Hint volikogu esimehe kandidaadiks. Res Publica liikmete käitumise arutelu aukohtus

  15. Res Publica andis kolmele poliitikule fiktiivse elukoha / Kärt Karpa

    Index Scriptorium Estoniae

    Karpa, Kärt, 1973-

    2002-01-01

    Väidetavalt lasi Res Publica enne kohalikke valimisi ühte Pirita eramajja sisse registreerida Jaanus Rahumäe ja veel kaks Res Publica liiget, et nad saaksid kandideerida Tallinna volikogusse ja Pirita halduskogusse

  16. Res Publica asus Reformierakonda Tallinna võimuliidust tõrjuma / Mirko Ojakivi

    Index Scriptorium Estoniae

    Ojakivi, Mirko

    2005-01-01

    Res Publica Tallinna piirkonna juhatuse liikme Siim Roode sõnul teeb Res Publica Keskerakonna Tallinna piirkonna juhatusele ettepaneku koalitsiooniläbirääkimiste alustamiseks. Lisa: Paltsu ettekäändeks Unicom

  17. Res Publica : umbusaldamine võib lõpetada senise koalitsiooni / Villy Paimets

    Index Scriptorium Estoniae

    Paimets, Villy, 1972-

    2005-01-01

    Res Publica erakorraline volikogu avaldas toetust justiitsministrile ja andis peaministrile volitused lõpetada justiitsministri umbusaldamise korral senine koalitsioon ning alustada läbirääkimisi Isamaaliiduga. Lisa: Res Publica toetab Vaherit

  18. Pöördumine Res Publica Tallinna juhatuse ning liikmete poole

    Index Scriptorium Estoniae

    2005-01-01

    2002. aastal Tallinna linnavolikogusse valitud Res Publica liikmete pöördumine piirkonna juhatuse ning liikmete poole, milles taunitakse Reformierakonna käitumist Tallinna koalitsioonis ning nimetatakse põhimõtteid, mille eest Res Publica peab praegu seisma

  19. FT4 Data Analysis Summary (SSI-ARC)

    Science.gov (United States)

    Isaacson, Douglas R.; Gong, Chester; Reardon, Scott Edward; Santiago, Confesor

    2016-01-01

    Standards for Unmanned Aircraft System (UAS) Detect-and-Avoid (DAA) systems are currently being developed under the auspices of the RTCA Special Committee 228 (SC-228). To support the development of these standards, a series of flight tests has been conducted at NASAs Armstrong Flight Research Center (NASA-AFRC). The fourth in this series of flight test activities (Flight Test 4, or simply FT4) was conducted during the Spring and Summer of 2016. FT4 supported the objectives of numerous organizations working toward UAS DAA Minimum Operational Performance Standards (MOPS) and UAS DAA Radar MOPS. The summary provided herein is limited to the objectives, analysis and conclusions of the NASA Ames Research Center (NASA-ARC) SSI team toward the refinement of UAS DAA MOPS. This document provides a high-level overview of FT4 and the SSI-ARC objectives, a summary of the data analysis methodology and recommendations for UAS DAA MOPS refinements based on the data analysis results. A total of 72 encounters were flown to support SSI-ARC objectives. Test results were generally consistent with acceptable UAS DAA system performance and will be considered in broader SC-228 requirements validation efforts. Observed alert lead times indicated acceptable UAS DAA alerting performance. Effective interoperability between the UAS DAA system and the Traffic Alert and Collision Avoidance System (TCAS) was observed with one notable exception: TCAS Resolutions Advisories (RA) were observed in the absence of any DAA alert on two occasions, indicating the need for alert parameter refinement. Findings further indicated the need for continued work in the areas of DAA Well Clear Recovery logic and alert stability for Mode-C-only intruders. Finally, results demonstrated a high level of compliance with a set of evaluation criteria designed to provide anecdotal evidence of acceptable UAS DAA system performance.

  20. FT Raman microscopy of untreated natural plant fibres

    Science.gov (United States)

    Edwards, H. G. M.; Farwell, D. W.; Webster, D.

    1997-11-01

    The application of FT-Raman microscopy to the non-destructive analysis of natural plant fibres is demonstrated with samples of flax, jute, ramie, cotton, kapok, sisal and coconut fibre. Vibrational assignments are proposed and characteristic features of each material are presented. Samples were not pre-treated chemically before analysis and were used directly from their respective storage collection; the adaptation of the Raman microscopic technique to the identification of specimens of natural fibres in archaeological burial sites is explored for its forensic potential.

  1. Bilan des flux de matières particulaires et dissoutes du Sassandra à ...

    African Journals Online (AJOL)

    Méthodes de calcul des flux de matières. Les méthodes de calculs des flux de matières en suspension sont .... Ces variations montrent que les périodes de crue correspondent aux fortes concentrations, alors que .... Variations mensuelles des matières en suspension. Les fortes concentrations en matières en suspension ...

  2. Res Publicas käärib mäss / Hants Hint

    Index Scriptorium Estoniae

    Hint, Hants

    2002-01-01

    Res Publica eestseisuse liige ja Ida-Viru piirkonna esimees Hants Hint vastab küsimustele Res Publica ja Keskerakonna võimuliidu moodustamisega tekkinud skandaali, Res Publica esimehe Juhan Partsiga kohtumise kohta. Vt. samas: "Korbi toetajaid ootab hukkamõist"

  3. Res Publica pakub sponsoritele anonüümsust / Virkko Lepassalu

    Index Scriptorium Estoniae

    Lepassalu, Virkko, 1971-

    2003-01-01

    Mõnede tõenäoliselt Res Publica lähedaste ettevõtjate seas levib erakonna nimel rahapalumiskiri, mis lubab sponsorile anonüümsust. Vt. samas: Telefonikõne ettevõtja ja Res Publica aseesimehe Ken-Marti Vaheri vahel ; Teisedki on saanud rahaallikaid varjates ; Res Publica on loobunud reklaamibroneeringutest

  4. Res Publica ladvikus hõõgub võimutüli / Tuuli Koch

    Index Scriptorium Estoniae

    Koch, Tuuli

    2006-01-01

    22. aprillil kogunenud Res Publica volikogu toetas 60 poolthäälega ühe vastu Res Publica ja Isamaaliidu ühinemist. Tõnis Palts teatas volikogul esinedes, et Taavi Veskimägi ei sobi Res Publica poolseks läbirääkimiste juhiks

  5. Res Publica toetus pole aastaga üle viie protsendi tõusnud / Tuuli Koch

    Index Scriptorium Estoniae

    Koch, Tuuli

    2006-01-01

    Emori jaanuarikuu küsitluse põhjal on 22 protsendiga suurim toetajaskond Keskerakonnal, Res Publica reiting on aasta aega püsinud viie ja kolme toetusprotsendi vahel. Vt. samas: Taavi Veskimägi. 2 küsimust. Diagrammid: Res Publica valiks riigikogusse tagasi vaid kolm protsenti valijaist; Toetus Res Publicale

  6. Res Publica aukohus heidab juhtidele ette eetikavääratust / Toomas Mattson

    Index Scriptorium Estoniae

    Mattson, Toomas, 1970-

    2002-01-01

    Ilmunud ka: Põhjarannik ; Severnoje Poberezhje 22. november lk. 3;4. Res Publica aukohus arvab, et Res Publica juhid on rikkunud erakonna põhikirja, sisekorda ja eetikakoodeksit Kohtla-Järve juhtumi lahendamisel. Kohtla-Järvel sai linnapeaks riisumiskahtlusega uurimise all olev Valeri Korb tänu Keskerakonna ja Res Publica koalitsioonileppele. Kommenteerib Juhan Kivirähk

  7. Further developments of the RES3T sorption database

    International Nuclear Information System (INIS)

    Brendler, V.

    2002-01-01

    RES 3 T - the Rossendorf expert system for surface and sorption thermodynamics currently under development has been expanded towards the provision of comprehensive sorption data sets suitable for complex natural systems of rocks and soils. Also a statistical evaluation of the available SCM (surface complexation model) data is now implemented. Finally, a normalization of SCM parameters to a standard site density has been incorporated. (orig.)

  8. Res Publica keeldub minemast Ansipi valitsusse / Kai Kalamees

    Index Scriptorium Estoniae

    Kalamees, Kai

    2005-01-01

    Res Publica peasekretär Ott Lumi peab jätkuvalt võimalikuks paremerakondade koalitsiooni teket. Ka Reformierakonna fraktsiooni esimehe Peep Aru sõnul on alati võimalik kokku leppida, kui on tahet. Isamaaliidu aseesimehe Tõnis Lukase sõnul peab enne koalitsioonikõneluste jätkamist selgeks saama, kes juhib läbirääkimisi

  9. MYRINGOPLASTIE PAR LA TECHNIQUE DES BOUTONNIÈRES

    African Journals Online (AJOL)

    Le but de ce travail est de rapporter nos résultatsde myringoplastie par la technique des boutonnières, chez des patients porteurs ... (4,08%), la latéralisation dans 1 cas (2,04%), le blunting ou comblement de l'angle antérieur tympano-méatal dans 1 cas. (2,04%) ..... permettent qu'un contact limité entre le greffon et les reli-.

  10. Use of FT-NIR Spectroscopy for Bovine Colostrum Analysis

    Directory of Open Access Journals (Sweden)

    P. Navrátilová

    2006-01-01

    Full Text Available Fourier transformation near infrared spectroscopy (FT-NIR in combination with partial least squares (PLS method were used to determine the content of total solids, fat, non-fatty solids, lactose and proteins in bovine colostrum. Spectra of 90 samples were measured in the reflectance mode with a transflectance cuvette in the 10000-4000 cm-1 spectral ranges with 100 scans. Calibration was performed and statistical values of correlation coefficients (R and standard error of calibration values (SEC were computed for total solids (0.986 and 0.919, respectively, fat (0.997 and 0.285, respectively, non-fatty solids (0.995 and 0.451, respectively, lactose (0.934 and 0.285, respectively and protein (0.999 and 0.149, respectively. The calibration models developed were verified by cross validation. It follows from the study that FT-NIR spectroscopy can be used to determine the components of bovine colostrum.

  11. Interacting dark energy models in f(T) gravity

    Science.gov (United States)

    Khurshudyan, M.; Myrzakulov, R.; Khurshudyan, As.

    2017-06-01

    The accelerated expansion of the large-scale universe can be explained in various ways. There are various modifications, and each of them makes an attempt to give its own explanation of the physics behind it. It is well known that modern cosmology is full of various phenomenological assumptions to obtain comprehensive results comparable with observational data. General Relativity is the main theory of gravity and proposed modifications compared to it, giving a hope to find explanations of phenomenological assumptions. f(T) theory of gravity is one of the options. In this paper, we will consider a particular example of f(T) theory and study the effects of various interactions on a cosmological model. Phase space analysis is used to have a qualitative understanding of the late-time behavior of the suggested cosmological models. During our study, we found that among phenomenological models suggested in this paper, we have cosmological models being in good agreement with the observational data. Moreover, study of the behavior of the deceleration parameter q showed a phase transition from a decelerated expanding universe to the accelerated (recent) expanding universe. On the other hand, for the parameters of the models giving the mentioned phase transition, we have estimated the present day values of statefinder parameters (r, s).

  12. Spectroscopic (FT-IR, FT-Raman, UV and NMR) investigation on 1-phenyl-2-nitropropene by quantum computational calculations.

    Science.gov (United States)

    Xavier, S; Periandy, S

    2015-01-01

    In this paper, the spectral analysis of 1-phenyl-2-nitropropene is carried out using the FTIR, FT Raman, FT NMR and UV-Vis spectra of the compound with the help of quantum mechanical computations using ab-initio and density functional theories. The FT-IR (4000-400 cm(-1)) and FT-Raman (4000-100 cm(-1)) spectra were recorded in solid phase, the (1)H and (13)C NMR spectra were recorded in CDCl3 solution phase and the UV-Vis (200-800 nm) spectrum was recorded in ethanol solution phase. The different conformers of the compound and their minimum energies are studied using B3LYP functional with 6-311+G(d,p) basis set and two stable conformers with lowest energy were identified and the same was used for further computations. The computed wavenumbers from different methods are scaled so as to agree with the experimental values and the scaling factors are reported. All the modes of vibrations are assigned and the structure the molecule is analyzed in terms of parameters like bond length, bond angle and dihedral angle predicted by both B3LYP and B3PW91 methods with 6-311+G(d,p) and 6-311++G(d,p) basis sets. The values of dipole moment (μ), polarizability (α) and hyperpolarizability (β) of the molecule are reported, using which the non-linear property of the molecule is discussed. The HOMO-LUMO mappings are reported which reveals the different charge transfer possibilities within the molecule. The isotropic chemical shifts predicted for (1)H and (13)C atoms using gauge invariant atomic orbital (GIAO) theory show good agreement with experimental shifts. NBO analysis is carried out to picture the charge transfer between the localized bonds and lone pairs. The local reactivity of the molecule has been studied using the Fukui function. The thermodynamic properties (heat capacity, entropy and enthalpy) at different temperatures are also calculated. Copyright © 2015 Elsevier B.V. All rights reserved.

  13. FTIR, FT-Raman, FT-NMR, UV-visible and quantum chemical investigations of 2-amino-4-methylbenzothiazole.

    Science.gov (United States)

    Arjunan, V; Sakiladevi, S; Rani, T; Mythili, C V; Mohan, S

    2012-03-01

    The FT-IR (4000-400 cm(-1)) and FT-Raman (4000-100 cm(-1)) spectral measurements and complete assignments of the observed spectra of 2-amino-4-methylbenzothiazole (2A4MBT) have been proposed. Ab initio and DFT calculations have been performed and the structural parameters of the compound were determined from the optimised geometry with 6-31G(d,p), 6-311++G(d,p) and cc-pVDZ basis sets and giving energies, harmonic vibrational frequencies, depolarisation ratios, IR intensities and Raman activities. (1)H and (13)C NMR spectra were recorded and (1)H and (13)C nuclear magnetic resonance chemical shifts of the molecule were calculated using the gauge independent atomic orbital (GIAO) method. UV-visible spectrum of the compound was also recorded and the electronic properties, such as HOMO, LUMO and band gap energies were measured by time-dependent DFT (TD-DFT) approach. The geometric parameters, energies, harmonic vibrational frequencies, IR intensities, Raman activities chemical shifts and absorption wavelengths were compared with the available experimental data of the molecule. The influences of methyl and amino groups on the skeletal modes and on the proton chemical shifts have been investigated. Copyright © 2011 Elsevier B.V. All rights reserved.

  14. Do TSH, FT3, and FT4 Impact BAT Visualization of Clinical FDG-PET/CT Images?

    Science.gov (United States)

    Nishii, Ryuichi; Nagamachi, Shigeki; Mizutani, Youichi; Terada, Tamasa; Kiyohara, Syogo; Wakamatsu, Hideyuki; Fujita, Seigo; Higashi, Tatsuya; Yoshinaga, Keiichiro; Saga, Tsuneo; Hirai, Toshinori

    2018-01-01

    We retrospectively analyzed activated BAT visualization on FDG-PET/CT in patients with various conditions and TH levels to clarify the relationships between visualization of BAT on FDG-PET/CT and the effect of TH. Patients who underwent clinical FDG-PET/CT were reviewed and we categorized patients into 5 groups: (i) thyroid hormone withdrawal (THW) group; (ii) recombinant human thyrotropin (rhTSH) group; (iii) hypothyroidism group; (iv) hyperthyroidism group; and (v) BAT group. A total of sixty-two FDG-PET/CT imaging studies in fifty-nine patients were performed. To compare each group, gender; age; body weight; serum TSH, FT3, and FT4 levels; and outside temperature were evaluated. No significant visualization of BAT was noted in any of the images in the THW, rhTSH, hypothyroidism, and hyperthyroidism groups. All patients in the BAT group were in a euthyroid state. When the BAT-negative and BAT-positive patient groups were compared, it was noted that the minimum and maximum temperature on the day of the PET study and maximum temperature of the one day before the PET study were significantly lower in BAT-positive group than in all those of other groups. Elevated TSH condition before RIT, hyperthyroidism, or hypothyroidism did not significantly impact BAT visualization of clinical FDG-PET/CT images.

  15. Hydrogenated fullerenes in space: FT-IR spectra analysis

    International Nuclear Information System (INIS)

    El-Barbary, A. A.

    2016-01-01

    Fullerenes and hydrogenated fullerenes are found in circumstellar and interstellar environments. But the determination structures for the detected bands in the interstellar and circumstellar space are not completely understood so far. For that purpose, the aim of this article is to provide all possible infrared spectra for C 20 and C 60 fullerenes and their hydrogenated fullerenes. Density Functional theory (DFT) is applied using B3LYP exchange-functional with basis set 6–31G(d, p). The Fourier transform infrared spectroscopy (FT-IR) is found to be capable of distinguishing between fullerenes, mono hydrogenated fullerenes and fully hydrogenated fullerenes. In addition, deposition of one hydrogen atom outside the fully hydrogenated fullerenes is found to be distinguished by forming H 2 molecule at peak around 4440 cm −1 . However, deposition of one hydrogen atom inside the fully hydrogenated fullerenes cannot be distinguished. The obtained spectral structures are analyzed and are compared with available experimental results.

  16. Galactic Halo Wormhole Solutions in f(T Gravity

    Directory of Open Access Journals (Sweden)

    M. Sharif

    2014-01-01

    Full Text Available The proposal of galactic halo region is based on the idea that dark halos contain some characteristics needed to support traversable wormhole solutions. We explore wormhole solutions in this region in the framework of generalized teleparallel gravity. We consider static spherically symmetric wormhole spacetime with flat galactic rotational curves and obtain expressions of matter components for nondiagonal tetrad. The effective energy-momentum tensor leads to the violation of energy conditions which may impose condition on the normal matter to satisfy these conditions. We take two well-known f(T models in exponential and logarithmic forms to discuss wormhole solutions as well as the equilibrium condition. It is concluded that wormhole solutions violating weak energy condition are obtained for both models with stable configuration.

  17. 3D-FT MRI of the facial nerve

    International Nuclear Information System (INIS)

    Girard, N.; Raybaud, C.; Poncet, M.

    1994-01-01

    Contrast-enhanced 3D-FT MRI of the intrapetrous facial nerve was obtained in 38 patients with facial nerve disease, using a 1.0 T magnet and fast gradient-echo acquisition sequences. Contiguous millimetric sections were obtained, which could be reformatted in any desired plane. Acutely ill patients, were examined within the first 2 months, included: 24 with Bell's palsy and 6 with other acute disorders (Herpes zoster, trauma, neuroma, meningeal metastasis, middle ear granuloma). Six patients investigated more than a year after the onset of symptoms included 3 with congenital cholesteatoma, 2 with neuromas and one with a chronic Bell's palsy. The lesion was found incidentally in two cases (a suspected neurofibroma and a presumed drop metastasis from an astrocytoma). Patients with tumours had nodular, focally-enhancing lesions, except for the leptomeningeal metastasis in which the enhancement was linear. Linear, diffuse contrast enhancement of the facial nerve was found in trauma, and in the patient with a middle ear granuloma. Of the 24 patients with an acute Bell's palsy 15 exhibited linear contrast enhancement of the facial nerve. Three of these were lost to follow-up, but correlation of clinical outcome and contrast enhancement showed that only 4 of the 11 patients who made a complete recovery and all 10 patients with incomplete recovery demonstrated enhancement. Possible explanations for these findings are suggested by pathological data from the literature. 3D-FT imaging of the facial nerve thus yields direct information about the of the nerve condition and defines the morphological abnormalities. It can also demonstrate contrast enhancement which seems to have some prognostic value in acute idiopathic Bell's palsy. (orig.)

  18. Hvorfor akut kræft? Et bud på en epidemisk forståelse af tid og kræft-tendenser i Danmark

    DEFF Research Database (Denmark)

    Tørring, Marie Louise

    2014-01-01

    Artiklen tager udgangspunkt i den danske akut-kræft-agenda i nullerne, der kulminerede i 2007, hvor den danske regering og Danske Regioner indgik en aftale om akut handling og blandt andet indførte kræft-pakkerne. Aftalen beskrives ofte som en kolossal præstation og succeshistorie, og den udvikling......, der gik forud, omtales gerne som en forbrødring, en kulturændring, ja sågar et mirakel. Påstande om revolutioner og mirakler i det danske sundhedsvæsen rejser interessante antropologiske spørgsmål om kulturel fortid og kulturelle forskelle i måden at opfatte og behandle sygdomme på. Den danske akut-kræft-agenda...... kræft som akut sygdom i Danmark i nullerne? Analysen her peger på, at akut kræft i Danmark var resultatet af 1) en eksponentiel vækst i kræft-repræsentationer som overlevelsesestimater og ventetidsfrekvenser (øget digital tydelighed), 2) magtfulde minder om kræft, 3) øget levealder og 4) en kontekst af...

  19. Infrastructures financières et croissance économique

    OpenAIRE

    Bruno Amable; Jean-Bernard Chatelain

    1999-01-01

    International audience; Dans cet article, les infrastructures financières augmentent l'efficacité du secteur bancaire: elles diminuent le pouvoir de marché des intermédiaires financiers (provenant de coûts de transactions et d'une différentiation spatiale horizontale), elles diminuent le coût du capital, augmentent le nombre de déposants et le montant total de l'épargne collectée par les banques. Ces facteurs augmentent le taux de croissance et peuvent permettre à des pays de sortir d'un pièg...

  20. Resúmenes de los trabajos sobre las Enfermedades Neuromusculares

    OpenAIRE

    Congreso Nacional de Neurología

    2010-01-01

    Las enfermedades neuromusculares constituyen un conjunto de afectaciones que afectan las neuronas motoras periférica, las vías motoras eferentes o los efectores (músculos esqueléticos). Sus manifestaciones clínicas son muy variadas y dependen de la causa y de los niveles de afectación. En este acápite se pueden encontrar los resúmenes de trabajos relacionados con el síndrome de Guillain Barre, polineuropatía diabética, Atrofia Muscular Espinal, Distrofia miotónica y otros todos presentados en...

  1. The accurate localization of fluorescent nanoparticle Au–Ft in nu/nu mice kidney

    Directory of Open Access Journals (Sweden)

    Hui Yang

    2014-05-01

    Full Text Available Au–Ft, as a green synthesized nanoparticle, is composed of a ferritin nanocage enclosing a pair of Au nanoclusters inside. Our previous study has demonstrated that Au–Ft can be an excellent fluorescent probe for whole body imaging of mice with kidney specific targeting. But, the accurate localization of Au–Ft in kidney is still absent. In the current study, we detected and assessed the cellular and subcellular localization of Au–Ft in renal cortex and medulla of nu/nu mice after tail vein injection by using Nuance optical system (CRi, Woburn, USA and inForm intelligent image analysis software based on single cell segmentation. We obtained the fluorescence intensity and cellular location of kidney-targeting Au–Ft probe in particular cell of renal glomerulus or renal tubules, which provided valuable proofs to clarify the mechanism of Au–Ft selective enrichment in kidney and the associated metabolic processes.

  2. Monitoring lipase-catalyzed interesterification for bulky fats modification with FT-IR/NIR spectroscopy

    DEFF Research Database (Denmark)

    Chang, Tinghong; Lai, Xuxin; Zhang, Hong

    2005-01-01

    This work demonstrates the application of FT-IR and FT-NIR spectroscopy to monitor the enzymatic interesterification process for bulky fat modification. The reaction was conducted between palm stearin and coconut oil (70/30, w/w) with the catalysis of Lipozyme TL IM at 70°C in a batch reactor...... (PLS) regression. High correlations (r > 0.96) were obtained from cross validations of the data estimated by FT-IR, FT-NIRand above-mentioned conventional analytical methods, except for correlations (r = 0.90-0,95) between FT-IR and SFC profiles. Overall, FT-NIR spectroscopy coupled with transmission...... mode measured at 70 °C had the highest correlations which also had the most close conditions to the sampled products in the process, indicating a big potential to implement as online control for monitoring enzymatic interesterification process....

  3. Insilico molecular modeling, docking and spectroscopic [FT-IR/FT-Raman/UV/NMR] analysis of Chlorfenson using computational calculations.

    Science.gov (United States)

    Ramalingam, S; Periandy, S; Sugunakala, S; Prabhu, T; Bououdina, M

    2013-11-01

    In the present work, the recorded FT-IR/FT-Raman spectra of the Chlorfenson (4-Chorophenyl-4-chlorobenzenesulfonate) are analysed. The observed vibrational frequencies are assigned and the computational calculations are carried out by DFT (LSDA, B3LYP and B3PW91) methods with 6-31++G(d,p) and 6-311++G(d,p) basis sets and the corresponding results are investigated with the UV/NMR data. The fluctuation of structure of Chlorobenzenesulfonate due to the substitution of C6H4Cl is investigated. The vibrational sequence pattern of the molecule related to the substitutions is intensely analysed. Moreover, (13)C NMR and (1)H NMR chemical shifts are calculated by using the gage independent atomic orbital (GIAO) technique with HF/B3LYP/B3PW91 methods on same basis set. A study on the electronic properties; absorption wavelengths, excitation energy, dipole moment and frontier molecular orbital energies, are performed by HF and DFT methods. The calculated energy of Kubo gap (HOMO and LUMO) ensures that the charge transfer occurs within the molecule. Besides frontier molecular orbitals (FMOs), molecular electrostatic potential (MEP) is executed. NLO properties and Mulliken charges of the Chlorfenson is also calculated and interpreted. Biological properties like the target receptor identification, and Identification of interacting residues, of this compound is identified and analysed by using SWISSMODEL, Castp, Hex and Pdb Sum. By using these properties, the mechanism of action of this compound on ATP Synthase of Tetranychus urticae is found and it is very much useful to develop efficient pesticides having less toxic to the environment. Crown Copyright © 2013. Published by Elsevier B.V. All rights reserved.

  4. DFT calculations and experimental FT-IR, FT-Raman, NMR, UV-Vis spectral studies of 3-fluorophenylboronic acid.

    Science.gov (United States)

    Karabacak, M; Kose, E; Sas, E B; Kurt, M; Asiri, A M; Atac, A

    2015-02-05

    The spectroscopic (FT-IR, FT-Raman, (1)H and (13)C NMR, UV-Vis), structural, electronic and thermodynamical properties of 3-fluorophenylboronic acid (C6H4FB(OH)2), 3FPBA) were submitted by using both experimental techniques and theoretical methods (quantum chemical calculations) in this work. The experimental infrared and Raman spectra were obtained in the region 4000-400 cm(-1) and 3500-10 cm(-1), respectively. The equilibrium geometry and vibrational spectra were calculated by using DFT (B3LYP) with 6-311++G(d,p) basis set. The vibrational wavenumbers were also corrected with scale factor to take better results for the calculated data. The total energy distributions (TED) of the vibrational modes were performed for the assignments of the title molecule by using scaled quantum mechanics (SQM) method. The NMR chemical shifts ((1)H and (13)C) were recorded in DMSO solution. The (1)H and (13)C NMR spectra were computed by using the gauge-invariant atomic orbital (GIAO) method, showing a good agreement with the experimental ones. The last one UV-Vis absorption spectra were analyzed in two solvents (ethanol and water), saved in the range of 200-400 nm. In addition these, HOMO and LUMO energies, the excitation energies, density of states (DOS) diagrams, thermodynamical properties and molecular electrostatic potential surface (MEPs) were presented. Nonlinear optical (NLO) properties and thermodynamic features were performed. The experimental results are combined with the theoretical calculations using DFT calculations to fortification of the paper. At the end of this work, the results were proved our paper had been indispensable for the literature backing. Copyright © 2014 Elsevier B.V. All rights reserved.

  5. Spectroscopic characterization of enzymatic flax retting: Factor analysis of FT-IR and FT-Raman data

    Science.gov (United States)

    Archibald, D. D.; Henrikssen, G.; Akin, D. E.; Barton, F. E.

    1998-06-01

    Flax retting is a chemical, microbial or enzymatic process which releases the bast fibers from the stem matrix so they can be suitable for mechanical processing before spinning into linen yarn. This study aims to determine the vibrational spectral features and sampling methods which can be used to evaluate the retting process. Flax stems were retted on a small scale using an enzyme mixture known to yield good retted flax. Processed stems were harvested at various time points in the process and the retting was evaluated by conventional methods including weight loss, color difference and Fried's test, a visual ranking of how the stems disintegrate in hot water. Spectroscopic measurements were performed on either whole stems or powders of the fibers that were mechanically extracted from the stems. Selected regions of spectra were baseline and amplitude corrected using a variant of the multiplicative signal correction method. Principal component regression and partial least-squares regression with full cross-validation were used to determine the spectral features and rate of spectral transformation by regressing the spectra against the retting time in hours. FT-Raman of fiber powders and FT-IR reflectance of whole stems were the simplest and most precise methods for monitoring the retting transformation. Raman tracks the retting by measuring the decrease in aromatic signal and subtle changes in the C-H stretching vibrations. The IR method uses complex spectral features in the fingerprint and carbonyl region, many of which are due to polysaccharide components. Both spectral techniques monitor the retting process with greater precision than the reference method.

  6. Spherically Symmetric Solutions on a Non-Trivial Frame in f(T) Theories of Gravity

    Science.gov (United States)

    Gamal, G. L. Nashed

    2012-05-01

    A new solution with constant torsion is derived using the field equations of f(T). Asymptotic forms of energy density, radial and transversal pressures are shown to meet the standard energy conditions, i.e., weak and null energy conditions according to some restrictions on T0, f(T0) and fT(T0). Other solutions are obtained for vanishing radial pressure and for specific choices of f(T). The physics relevant to the resulting models is discussed.

  7. Renewables portfolio, individual preferences and social values towards RES technologies

    International Nuclear Information System (INIS)

    Kontogianni, Areti; Tourkolias, Christos; Skourtos, Michalis

    2013-01-01

    The massive deployment of renewable energy sources represents a high priority for Greece in order to comply with the Directive 2009/28/EC on the promotion of the use of energy from renewable sources by 2020. In this perspective, Aegean islands especially Lesvos, are endowed with a considerable potential of a portfolio of renewables, a fact that the entrepreneurial interest has already been targeted. However, regulatory attempts for a massive penetration of renewables do not take seriously into account preferences and risk perceptions of local communities where the proposed projects are to be installed. The aim of this study is to investigate individual preferences and social values towards specific technologies of renewables in Lesvos island. We apply an open-ended contingent valuation survey in order to analyze factors shaping public attitudes towards a portfolio of renewable technologies and estimate the economic welfare (Willingness To Pay) of the preferred technologies. We argue that such information is relevant for energy policy design and the establishment of effective measures for the promotion of renewable energy sources. - Highlights: ► We investigate individual preferences and attitudes towards a portfolio of RES technologies. ► We elicit public acceptance for investing in specific RES technologies. ► We analyze factors shaping public preferences of the preferred technologies. ► We estimate the economic welfare of the preferred technologies

  8. FT-IR spectroscopic studies of polycyclic aromatic hydrocarbons

    International Nuclear Information System (INIS)

    Salisbury, D.W.; Allen, J.E. Jr.; Donn, B.; Moore, W.J.; Khanna, R.K.

    1990-01-01

    Proper assessment of the hypothesis which correlates polycyclic aromatic hydrocarbons (PAHs) with the unidentified infrared emission bands requires additional experimental laboratory data. In order to address this need, thermal infrared emission studies were performed on a subset of PAHs suggested to be of astrophysical importance. It was proposed that infrared emission from interstellar PAHs occurs following absorption of an ultraviolet photon. Since energy transfer to the ground electronic state can be rapid for a species in which intersystem crossing is negligible, the emission spectrum may be viewed as resulting from an equilibrium vibrational temperature (Leger and d'Hendecourt, 1987). This has been the basis for using infrared absorption spectra to calculate the corresponding emission spectra at various temperatures. These calculations were made using room temperature infrared absorption coefficients instead of those at the temperature of interest because of the latter's unavailability. The present studies are designed to address the differences between the calculated and experimental thermal emission spectra and to provide information which will be useful in future ultraviolet induced infrared fluorescence studies. The emission spectra have been obtained for temperatures up to 825K using an emission cell designed to mount against an external port of an FT-IR spectrometer. These spectra provide information concerning relative band intensities and peak positions which is unavailable from previous calculations

  9. Statistical analysis of the Ft. Calhoun reactor coolant pump system

    International Nuclear Information System (INIS)

    Heising, Carolyn D.

    1998-01-01

    In engineering science, statistical quality control techniques have traditionally been applied to control manufacturing processes. An application to commercial nuclear power plant maintenance and control is presented that can greatly improve plant safety. As a demonstration of such an approach to plant maintenance and control, a specific system is analyzed: the reactor coolant pumps (RCPs) of the Ft. Calhoun nuclear power plant. This research uses capability analysis, Shewhart X-bar, R-charts, canonical correlation methods, and design of experiments to analyze the process for the state of statistical control. The results obtained show that six out of ten parameters are under control specifications limits and four parameters are not in the state of statistical control. The analysis shows that statistical process control methods can be applied as an early warning system capable of identifying significant equipment problems well in advance of traditional control room alarm indicators Such a system would provide operators with ample time to respond to possible emergency situations and thus improve plant safety and reliability. (author)

  10. Inventaire des Plantes Mellifères du Sud Ouest Algérien | Laallam ...

    African Journals Online (AJOL)

    Cette étude nous a permis de mettre en évidence l‟existence d‟une flore diversifiée, composée de plantes cultivées (cultures maraîchères et fourragères ; arbres fruitiers et forestiers ; palmier dattier …) mais surtout d‟espèces spontanées vivaces et éphémères. Nous avons recensé 66 espèces mellifères dans les ...

  11. FT-IR and XRD analysis of coal from Makum coalfield of Assam

    Indian Academy of Sciences (India)

    High sulphur coal sample from Ledo colliery of Makum coalfield, Assam, India was studied using FT-IR and XRD methods. FT-IR study shows the presence of ... Function of Radial Distribution Analysis (FRDA) indicates that coal is lignite in type and there is no evidence of graphite-like structure. The first maximum in the G() ...

  12. Overexpression of Arabidopsis FLOWERING LOCUS T (FT) gene improves floral development in cassava (Manihot esculenta, Crantz).

    Science.gov (United States)

    Adeyemo, O Sarah; Chavarriaga, Paul; Tohme, Joe; Fregene, Martin; Davis, Seth J; Setter, Tim L

    2017-01-01

    Cassava is a tropical storage-root crop that serves as a worldwide source of staple food for over 800 million people. Flowering is one of the most important breeding challenges in cassava because in most lines flowering is late and non-synchronized, and flower production is sparse. The FLOWERING LOCUS T (FT) gene is pivotal for floral induction in all examined angiosperms. The objective of the current work was to determine the potential roles of the FT signaling system in cassava. The Arabidopsis thaliana FT gene (atFT) was transformed into the cassava cultivar 60444 through Agrobacterium-mediated transformation and was found to be overexpressed constitutively. FT overexpression hastened flower initiation and associated fork-type branching, indicating that cassava has the necessary signaling factors to interact with and respond to the atFT gene product. In addition, overexpression stimulated lateral branching, increased the prolificacy of flower production and extended the longevity of flower development. While FT homologs in some plant species stimulate development of vegetative storage organs, atFT inhibited storage-root development and decreased root harvest index in cassava. These findings collectively contribute to our understanding of flower development in cassava and have the potential for applications in breeding.

  13. FT-IR SOLUTION SPECTRA OF PROPYL SULFIDE, PROPYL SULFOXIDE, AND PROPYL SULFONE

    Science.gov (United States)

    FT-IR spectra were obtained of 0.5% volumetric solutions of propyl sulfide, propyl sulfoxide, and propyl sulfone in hexane, CCl4, CS2, and CHCl3 to assist in the assignment of FT-IR-PAS spectra of propyl sulfoxide sorbed within the structure of several peats and onto cellulose. T...

  14. MCNP6 and DRiFT modeling efforts for the NEUANCE/DANCE detector array

    Energy Technology Data Exchange (ETDEWEB)

    Pinilla, Maria Isabel [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-01-30

    This report seeks to study and benchmark code predictions against experimental data; determine parameters to match MCNP-simulated detector response functions to experimental stilbene measurements; add stilbene processing capabilities to DRiFT; and improve NEUANCE detector array modeling and analysis using new MCNP6 and DRiFT features.

  15. Écuyères and "doing gender"

    DEFF Research Database (Denmark)

    Hedenborg, Susanna; Pfister, Gertrud Ursula

    2012-01-01

    The purpose of this article is to analyse gender relations in equestrianism from the beginning of the 19th to the first decades of the 20th century. Focus will be on the female horse riding circus artists, the écuyères. The fact that women were circus riders at this time is interesting as in many...... parts of the world and in many epochs, horses have played a significant role in the lives of men. Traditionally men used horses in agriculture, forestry, the transport sector and in the army and a real man was a horseman. Widespread practices and, in particular, the symbolic correlation between...... masculinity and horsemanship conveys the impression that women had nothing to do with horses. This is true for many situations. The circus arena, however, seems to have been an exception as women could perform there. At the heart of the performances was not only equestrianism, but also the notion of gender...

  16. NBO, HOMO-LUMO, UV, NLO, NMR and vibrational analysis of veratrole using FT-IR, FT-Raman, FT-NMR spectra and HF-DFT computational methods.

    Science.gov (United States)

    Suvitha, A; Periandy, S; Gayathri, P

    2015-03-05

    This work deals with FT-IR, FT-Raman and FT-NMR spectral analysis and NBO, NLO, HOMO-LUMO and electronic transitions studies on veratrole. The molecular structure, fundamental vibrational frequencies and intensity of the vibrational bands were interpreted with the aid of structure optimizations and geometrical parameter calculations based on Hartree-Fock (HF) and density functional theory (DFT) method with 6-311++G(d, p) basis set. A study on the electronic properties, such as HOMO and LUMO energies were performed by time independent DFT approach. In addition, molecular electrostatic potential (MEP), Natural Bond-Orbital (NBO) analysis and thermodynamic properties were performed. The (1)H and (13)C nuclear magnetic resonance (NMR) chemical shifts of the molecule were calculated by gauge independent atomic orbital (GIAO) method and compared with experimental chemical shift. Copyright © 2014 Elsevier B.V. All rights reserved.

  17. EFFECT OF PROCESS PARAMETER VARIATION ON ft IN CONVENTIONAL AND JUNCTIONLESS GATE-ALL-AROUND DEVICES

    Directory of Open Access Journals (Sweden)

    B. LAKSHMI

    2015-08-01

    Full Text Available In this paper we have studied the effect of process variations on unity gain cut- off frequency (ft in conventional and junctionless gate-all-around (GAA transistors using TCAD simulations. Three different geometrical parameters, channel doping, source/drain doping (for conventional GAA, wire doping (for junctionless GAA and gate electrode work function are studied for their sensitivity on ft. For conventional GAA, ft is more sensitive to gate length and source/drain doping and less sensitive to gate oxide thickness, ovality and channel doping and least sensitive to gate work function variations. For junctionless GAA, ft is more sensitive to gate length and gate work function variations and less sensitive to gate oxide thickness, ovality, wire doping. The non-quasi static (NQS delay is extracted for the most sensitive parameters. The trend of NQS delay is just the reverse trend of ft.

  18. Psychological trauma and help seeking behaviour amongst resettled Iraqi refugees in attending English tuition classes in Australia.

    Science.gov (United States)

    Slewa-Younan, Shameran; Mond, Jonathan M; Bussion, Elise; Melkonian, Maral; Mohammad, Yaser; Dover, Hanan; Smith, Mitchell; Milosevic, Diana; Jorm, Anthony Francis

    2015-01-01

    To examine levels of psychological distress and help seeking behaviour in resettled refugees attending English tuition classes in Australia, and their associations with participants' demographic characteristics. Data was collected by bilingual interviewers between March and November 2013. A volunteer sample of attendees of Adult Migrant English Programs (AMEP) in Western Sydney were recruited. Participants were two hundred and twenty five Iraqi refugees resettled in Western Sydney, who had left Iraq no earlier than 1991, were fluent in Arabic and/or English, and were between the ages of 18 and 70. The chief outcome measures used were the Kessler Psychological Distress Scale (K-10) as well as The Harvard Trauma Questionnaire (HTQ). On the K-10, 39.8% of participants had severe psychological distress, 19.4% moderate distress, and 40.7% had low to mild distress. Ninety-five percent of participants reported having experienced one or more potentially traumatic event (PTE) as defined by the HTQ prior to leaving Iraq, with a mean of 14.28 events (SD = 8.69). Thirty-one percent of participants met the threshold (≥2.5) for clinically significant PTSD symptomatology, with a significantly higher occurrence among participants with lower education attainment (χ (2) (3) = 8.26, p = .04). Of those participants with clinically significant PTSD symptomatology according to the HTQ, only 32.9% reported ever having ever sought help for a mental health problem. The high level of distress found in this sample, combined with low uptake of mental health care, highlights the need for programs targeted to promote help-seeking among Iraqi refugees who have resettled in Australia. Further, the higher level of PTSD symptomatology found amongst those with lower education attainment has mental health promotion and treatment implications. Specifically, in designing service and treatment programs, consideration should be given to the possible impact excessive levels of psychological

  19. Molecular Characterization of FT and FD Homologs from Eriobotrya deflexa Nakai forma koshunensis.

    Science.gov (United States)

    Zhang, Ling; Yu, Hao; Lin, Shunquan; Gao, Yongshun

    2016-01-01

    In angiosperms, regulation of flowering is a vital process for successful reproduction. To date, the molecular mechanism of flowering is well-studied in the model plant, Arabidopsis, in which key genes such as FLOWERING LOCUST (FT) or FD have been identified to regulate flowering. However, the flowering mechanisms are still largely unknown in fruit trees like loquat. To this end, we first cloned one FT- and two FD-like genes from the loquat (Eriobotrya deflexa Nakai f. koshunensis) and referred to as EdFT, EdFD1, and EdFD2, respectively. Phylogenetic analysis has shown that EdFT, EdFD1, and EdFD2 are conserved during the evolution process. EdFT is mainly expressed in reproductive tissues (e.g., flower buds, flowers, and fruits), while EdFD1 and EdFD2 are mainly expressed in apical buds including leaf buds and flower buds. EdFT is localized in the whole cell, while EdFD1 or EdFD2 is localized in the nucleus. Ectopic expression of EdFT, EdFD1, and EdFD2 in Arabidopsis results in early flowering. In addition, we have also revealed that the EdFT interacts with both EdFD1 and EdFD2. Overall, these data suggest that the EdFT, EdFD1, and EdFD2 are the functional homologs of FT and FD, respectively, which might act together to regulate loquat flowering through a similar mechanism found in Arabidopsis.

  20. Evidence that the novel imidazoline compound FT005 is anα2-adrenoceptor agonist

    Science.gov (United States)

    Slough, Scott; Guillaumet, Gerald; Taberner, Peter V

    2002-01-01

    The aim of this study was to determine whether the hyperglycaemic action of the novel imidazoline compound FT005 could be mediated by activation of α2-adrenoceptors, using a variety of in vivo and in vitro methods including radioligand binding. FT005 produced a dose-dependent increase in blood glucose levels of CBA/Ca mice (0.125–25 mg kg−1, i.p.). The time course of this hyperglycaemic effect matched that of adrenaline (1 mg kg−1) more closely than glucagon (1 mg kg−1) or the KATP channel opener diazoxide (25 mg kg−1). The hyperglycaemic effect of FT005 (1 mg kg−1) was significantly reduced by the α2-adrenoceptor antagonist rauwolscine (0.5 mg kg−1). FT005 produced a significant reduction in plasma insulin levels of mice 30 min after administration. The hyperglycaemic effect of FT005 (25 mg kg−1), although still present, was significantly less in fasted mice in which insulin levels are lower, suggesting that a reduction of insulin secretion contributes to the action of FT005. When studied in the mouse isolated vas deferens preparation, FT005 produced a complete inhibition of neurogenic contractions, which was blocked by rauwolscine. This is consistent with activation of pre-synaptic α2-adrenoceptors. In radioligand binding studies FT005 completely displaced the α2-adrenoceptor antagonist [3H]-RX821002 from mouse whole brain homogenates. The displacement was best described by a two-site model of interaction comprising high and low affinity components. The results indicate that FT005 is an agonist at α2-adrenoceptors. A reduction in insulin secretion contributes to the hyperglycaemic action of FT005, although an additional mechanism can not be excluded. PMID:12145105

  1. FT overexpression induces precocious flowering and normal reproductive development in Eucalyptus.

    Science.gov (United States)

    Klocko, Amy L; Ma, Cathleen; Robertson, Sarah; Esfandiari, Elahe; Nilsson, Ove; Strauss, Steven H

    2016-02-01

    Eucalyptus trees are among the most important species for industrial forestry worldwide. However, as with most forest trees, flowering does not begin for one to several years after planting which can limit the rate of conventional and molecular breeding. To speed flowering, we transformed a Eucalyptus grandis × urophylla hybrid (SP7) with a variety of constructs that enable overexpression of FLOWERING LOCUS T (FT). We found that FT expression led to very early flowering, with events showing floral buds within 1-5 months of transplanting to the glasshouse. The most rapid flowering was observed when the cauliflower mosaic virus 35S promoter was used to drive the Arabidopsis thaliana FT gene (AtFT). Early flowering was also observed with AtFT overexpression from a 409S ubiquitin promoter and under heat induction conditions with Populus trichocarpa FT1 (PtFT1) under control of a heat-shock promoter. Early flowering trees grew robustly, but exhibited a highly branched phenotype compared to the strong apical dominance of nonflowering transgenic and control trees. AtFT-induced flowers were morphologically normal and produced viable pollen grains and viable self- and cross-pollinated seeds. Many self-seedlings inherited AtFT and flowered early. FT overexpression-induced flowering in Eucalyptus may be a valuable means for accelerating breeding and genetic studies as the transgene can be easily segregated away in progeny, restoring normal growth and form. © 2015 Society for Experimental Biology, Association of Applied Biologists and John Wiley & Sons Ltd.

  2. Barrières contre les ravageurs à faible hauteur de vol dans les cultures maraîchères

    OpenAIRE

    Wyss, Eric; Daniel, Claudia

    2005-01-01

    Beaucoup des revageurs des cultures maraîchères volent très près du sol. Ils se déplacent à hauteur de culture ou juste au-dessus. On peut barrer à ces ravageurs l'accès à la culture au moyen de filets verticaux, que l'on nomme barrières à insectes.

  3. Res Publica seisab vastu homse arvel elamisele / Siim Männik

    Index Scriptorium Estoniae

    Männik, Siim

    2005-01-01

    Ilmunud ka: Vabariik (venek.) 30. august lk. 1. Res Publica koostab praegu kohalikeks valimisteks nimekirju. Erakond ei plaani korraldada mitte ühte üleriigilist valimiskampaaniat, vaid 120 kohalikku kampaaniat, peale selle on kavas üleriigiline n.-ö. foonikampaania. Lisa: Miks valida Res Publica? Vt. samas: Sisevalimised 1.-3. septembrini

  4. Res Publica Ida-Viru piirkond valis uue juhatuse / Erik Gamzejev

    Index Scriptorium Estoniae

    Gamzejev, Erik, 1967-

    2002-01-01

    Ilmunud ka: Severnoje Poberezhje 4. dets. lk. 1. Res Publica Ida-Viru piirkonna üldkogul valiti uus juhatus, Vladimir Sarantsevi sõnul oli koosolek enamiku Kohtla-Järve osakonna liikmete arvates õigustühine. Res Publica peasekretäri Tõnis Konsi kommentaare

  5. Ühendpartei Res Publica tiib oli häältekogumisel Isamaast pisut edukam

    Index Scriptorium Estoniae

    2007-01-01

    Ühenderakonna Res Publica tiiva kandidaadid said Riigikogu valimistel umbes tuhat häält rohkem kui Isamaaliidu tiiva kandidaadid, samas oli IRL-i valimisnimekirjas Res Publica tiiva kandidaate ka mõne inimese võrra rohkem. Isamaaliidu edukaimad hääletoojad

  6. Res Publica lihtliikmed tõrjuvad Veskimäge / Tuuli Koch

    Index Scriptorium Estoniae

    Koch, Tuuli

    2006-01-01

    Ilmunud ka: Pärnu Postimees 17. okt. lk. 6. Isamaa ja Res Publica liidu peaministrikandidaadiks sai Mart Laar, kuid pinged erakondade sees kestavad edasi. Res Publica opositsioon toetab isamaaliitlast Mart Laari ja on Taavi Veskimäe vastu. Lisa: Otsitakse peaministrit

  7. Presidendilossis pidutses ka üks Res Publica liige / Kadri Jakobson

    Index Scriptorium Estoniae

    Jakobson, Kadri, 1970-

    2006-01-01

    SL Õhtulehele presidendilossis toimunud noortepidudest rääkinud neiu on Res Publica liige, kuid tema sõnul pole tema parteiline kuuluvus pidudega seotud. Arvamust avaldavad Res Publica juhatuse liige Andreas Kaju, erakonna esimees Taavi Veskimägi, ERL-i pressiesindaja Agu Uudelepp jt.

  8. Res Publica mängis topeltmängu / Risto Berendson

    Index Scriptorium Estoniae

    Berendson, Risto, 1975-

    2005-01-01

    Res Publica jätkab koostööd Tallinna linnavalitsuses Reformierakonnaga. Tallinna linnapea Tõnis Paltsi sõnul oli paralleelsete läbirääkimiste pidamine Keskerakonna ja Reformierakonnaga Res Publica Tallinna piirkonna juhatuse valitud taktika. Kommenteerib Jaanus Piirsalu

  9. Res Publica kõrvaldas mässaja / Kristjan Roos

    Index Scriptorium Estoniae

    Roos, Kristjan, 1978-

    2005-01-01

    Tallinna linnavolikogu Res Publica fraktsiooni juhi kohalt, Res Publica Tallinna piirkonna juhatusest ja erakonna eestseisusest end taandanud Toomas Tautsi sõnul esitati talle erakonna eestseisuses mitmeid süüdistusi, mis kokkuvõtvalt olid etteheited tema vastuseisule võimalikule koalitsioonile Keskerakonnaga. Lisa: Abilinnapeadeks saavad Promm, Reivik ja Pevkur

  10. Epidemiology of Chronic Wasting Disease: PrP(res) Detection, Shedding, and Environmental Contamination

    National Research Council Canada - National Science Library

    Williams, Elizabeth S; Miller, Michael W; Lewis, Randolf V; Raisbeck, Merl F; Cook, Walter W

    2004-01-01

    .... The specific goals of these studies are to develop sensitive as says for PrP(exp res) as a marker for infectivity, and use these techniques to monitor the dynamics and modes of shedding of PrP(exp res...

  11. 78 FR 54669 - Draft Environmental Impact Statement for the Proposed RES Americas Moapa Solar Energy Center...

    Science.gov (United States)

    2013-09-05

    ... Environmental Impact Statement for the Proposed RES Americas Moapa Solar Energy Center, Clark County, Nevada... environmental impact statement (DEIS) for the proposed RES Americas Moapa Solar Energy Center on the Moapa River... Progress and on the following Web site: www.MoapaSolarEnergyCenterEIS.com . In order to be fully considered...

  12. Les dynamiques transfrontalières en Afrique de l'Ouest : Analyse ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Ouest (CSAO / OCDE) et la Direction Nationale des Frontières du Mali (DNF), de l'initiative Frontières et Intégrations en Afrique de ... In Africa as elsewhere, the past decade has seen rapid growth in the private security industry.

  13. The Fundamentals Principle Of Legal Certaintly And Equality, And Inovations, Of Res Judicate On New Civil Procedure Code

    Directory of Open Access Journals (Sweden)

    Ailene de Oliveira Figueiredo

    2016-12-01

    Full Text Available The fundamental principles of legal certainty and equality. Conceptand legal nature of res judicata. Elements of the constitutional construction of res judicata. The limits and mechanisms for review of res jucata. The provisional guardian shipand res judicata. The resolution incident repetitive demand sand res judicata. Changes of institute of res judicata with advent of the New Civil Procedure Code at the light of the constututional principles of equality na security. New tools provided by the new law. The constitucional foundations of procedural nature of security em contemporary litigation.

  14. Hi-Res scan mode in clinical MDCT systems: Experimental assessment of spatial resolution performance.

    Science.gov (United States)

    Cruz-Bastida, Juan P; Gomez-Cardona, Daniel; Li, Ke; Sun, Heyi; Hsieh, Jiang; Szczykutowicz, Timothy P; Chen, Guang-Hong

    2016-05-01

    The introduction of a High-Resolution (Hi-Res) scan mode and another associated option that combines Hi-Res mode with the so-called High Definition (HD) reconstruction kernels (referred to as a Hi-Res/HD mode in this paper) in some multi-detector CT (MDCT) systems offers new opportunities to increase spatial resolution for some clinical applications that demand high spatial resolution. The purpose of this work was to quantify the in-plane spatial resolution along both the radial direction and tangential direction for the Hi-Res and Hi-Res/HD scan modes at different off-center positions. A technique was introduced and validated to address the signal saturation problem encountered in the attempt to quantify spatial resolution for the Hi-Res and Hi-Res/HD scan modes. Using the proposed method, the modulation transfer functions (MTFs) of a 64-slice MDCT system (Discovery CT750 HD, GE Healthcare) equipped with both Hi-Res and Hi-Res/HD modes were measured using a metal bead at nine different off-centered positions (0-16 cm with a step size of 2 cm); at each position, both conventional scans and Hi-Res scans were performed. For each type of scan and position, 80 repeated acquisitions were performed to reduce noise induced uncertainties in the MTF measurements. A total of 15 reconstruction kernels, including eight conventional kernels and seven HD kernels, were used to reconstruct CT images of the bead. An ex vivo animal study consisting of a bone fracture model was performed to corroborate the MTF results, as the detection of this high-contrast and high frequency task is predominantly determined by spatial resolution. Images of this animal model generated by different scan modes and reconstruction kernels were qualitatively compared with the MTF results. At the centered position, the use of Hi-Res mode resulted in a slight improvement in the MTF; each HD kernel generated higher spatial resolution than its counterpart conventional kernel. However, the MTF along the

  15. Regulatory design for RES-E support mechanisms: Learning curves, market structure, and burden-sharing

    International Nuclear Information System (INIS)

    Batlle, C.; Pérez-Arriaga, I.J.; Zambrano-Barragán, P.

    2012-01-01

    Drawing from relevant experiences in power systems around the world, this paper offers a review of existing policy support mechanisms for RES-E, with a detailed analysis of their regulatory implications. While recent studies provide an account of current RES-E support systems, in this paper we focus on some of the impacts these mechanisms have on the overall energy market structure and its performance. Given the rising importance of RES-E in systems everywhere, these impacts should no longer be overlooked. - Highlights: ► This paper offers a critical review of RES-E support mechanisms and their regulatory implications. ► The discussion focuses on how the different schemes impact the performance of the energy markets. ► We propose to redesign of current RES-E mechanisms to optimize incentives and market performance. ► Our recommendation is also to gradually move from price-based mechanisms to auctions.

  16. Characterization of additives typically employed in EPDM formulations by using FT-IR of gaseous pyrolyzates

    Directory of Open Access Journals (Sweden)

    Natália Beck Sanches

    2014-06-01

    Full Text Available In this study, Fourier transform infrared spectroscopy (FT-IR was employed to investigate the gaseous pyrolysis products of ethylene - propylene - diene rubber (EPDM. The objective was to evaluate the potential of FT-IR analysis of gaseous pyrolyzates (PY-G/FT-IR for characterization of EPDM additives. Two EPDM formulations, containing additives typically employed in EPDM rubbers, were analyzed. Initially, gaseous pyrolysis products from paraffin oil, stearic acid, 2,2,4-trimethyl-1,2-dihydroquinoline, tetramethylthiuram monosulfide (TMTM, tetramethylthiuram disulfide (TMTD, and 2-mercaptobenzothiazole (MBT were characterized separately, and their main absorptions were identified. Subsequently, the gaseous pyrolysis products of raw, unvulcanized, and vulcanized EPDM formulations were analyzed. The similarities observed in the FT-IR spectra of unvulcanized and vulcanized EPDM show that the vulcanization process does not interfere with the pyrolysis products. The identification of the functional groups of the studied additives was possible in both unvulcanized and vulcanized EPDM samples, without solvent extraction. Results also demonstrate that the PY-G/FT-IR technique can identify additives containing sulfur in concentrations as low as 1.4 phr (1.26% in both unvulcanized and vulcanized EPDM. However, the method showed some limitation due to overlapping and to similarities of TMTM and TMTD PY-G/FT-IR spectra, which could not be distinguished from each other. The PY-G/FT-IR technique is a faster and cheaper alternative to the sophisticated techniques usually applied to detection of additives in rubbers.

  17. Remote Music Tuition

    NARCIS (Netherlands)

    S. Duffy; D. Williams; I. Kegel; T. Stevens; A.J. Jansen (Jack); P.S. Cesar Garcia (Pablo Santiago); P. Healey

    2012-01-01

    htmlabstractIt is common to learn to play an orchestral musical instrument through one-to-one lessons with an experienced tutor. For musicians who choose to study performance at an undergraduate level and beyond, their tutor is an important part of their professional musical development. For many

  18. Investigation of coals and coal conversion products by FT-IR methods

    Energy Technology Data Exchange (ETDEWEB)

    Romanchuk, V.V.; Ismagilov, M.S.; Korobetskii, I.A. [Clean Coal Technology and Certification Center Ltd., Kemerovo (Russian Federation)

    1996-12-31

    The influence of water content on coal pyrolysis was studied by Fourier transform infrared (FT-IR) spectroscopy. Three coals varying in rank were studied. The coal samples were previously dried at 200 C. Pyrolysis was carried out in a nitrogen flow reactor at temperature 450 C. The FT-IR examination showed that the aliphatic structures and hydroxyl functional groups were removed from chars, while aromatic hydrogen content increased during the pyrolysis. Several structural characteristics based on FT-IR data were calculated for coals and their chars. These structural characteristics showed increasing of aromatic hydrogen content during the drying.

  19. Anisotropic fluid for a set of non-diagonal tetrads in f(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Hamani Daouda, M., E-mail: daoudah8@yahoo.fr [Universidade Federal do Espirito Santo, Centro de Ciencias Exatas, Departamento de Fisica, Av. Fernando Ferrari s/n, Campus de Goiabeiras, CEP 29075-910, Vitoria, ES (Brazil); Faculte des Sciences et Techniques, Universite Abdou Moumouni de Niamey, BP 10662, Niamey (Niger); Rodrigues, Manuel E., E-mail: esialg@gmail.com [Universidade Federal do Espirito Santo, Centro de Ciencias Exatas, Departamento de Fisica, Av. Fernando Ferrari s/n, Campus de Goiabeiras, CEP 29075-910, Vitoria, ES (Brazil); Houndjo, M.J.S., E-mail: sthoundjo@yahoo.fr [Departamento de Ciencias Naturais, CEUNES, Universidade Federal do Espirito Santo, CEP 29933-415, Sao Mateus, ES (Brazil); Institut de Mathematiques et de Sciences Physiques (IMSP), 01 BP 613 Porto-Novo (Benin)

    2012-08-29

    We consider f(T) gravity for a Weitzenbock's spherically symmetric and static spacetime, where the metric is projected in the tangent space to the manifold, for a set of non-diagonal tetrads. The matter content is coupled through the energy-momentum tensor of an anisotropic fluid, generating various classes of new black hole and wormhole solutions. One of these classes is that of cold black holes. We also perform the reconstruction scheme of the algebraic function f(T) for two cases where the radial pressure is proportional to f(T) and its first derivative.

  20. An exploratory study of human teeth enamel by using Ft-Raman spectroscopy

    International Nuclear Information System (INIS)

    Afishah Alias; Siti Rahayu Mohd Hashim; Mihaly, Judith; Julyannie Wajir; Fauziah Abdul Aziz

    2009-01-01

    Unaffected , affected and heavily affected teeth enamel were studied by using FT-Raman spectroscopy. The 14 permanent teeths enamel surface were measured randomly, resulting in total n = 43 FT-Raman spectra. The results obtained from FT-Raman spectra of heavily affected, affected and unaffected tooths enamel surfaces did not show any significant difference. In this study, Kruskal-Wallis and Wilcoxon rank sum tests were used to compare the intensity between the categories of enamel as well as the surfaces of teeth samples. (author)

  1. D0 Silicon Upgrade: Calculating Mass Flow Rates at Sub-Sonic Conditions Trhough Venturis (FT-4052-H & FT-4053-H) and an Orifice Plate (F)-2019-H)

    Energy Technology Data Exchange (ETDEWEB)

    Zaczek, Mauiusz; /Fermilab

    1996-08-15

    The purpose of this engineering note is to explain the method involved in calculating the mass flow rates through venturis and orifice plates at sub-sonic conditions. In particular, the mass flow rate calculations are required for two FLOW-DYNE venturi flow meters, serial no. 35821 and no. 35822, and an orifice plate flow meter, serial no. 35823. The two venturis, FT-4052-H and FT-4053-H, are located in the D-Zero VLPC valve box at the refrigerator and the orifice plate, FO-2019-H, is on the high pressure helium supply line in the assembly building.

  2. Intelligent energy buildings based on RES and nanotechnology

    Energy Technology Data Exchange (ETDEWEB)

    Kaplanis, S., E-mail: kaplanis@teipat.gr; Kaplani, E. [R.E.S. Laboratory, Mechanical Engineering Dept., Technological Educational Institute of Western Greece M. Alexandrou 1, Koukouli 26 334, Patra (Greece)

    2015-12-31

    The paper presents the design features, the energy modelling and optical performance details of two pilot Intelligent Energy Buildings, (IEB). Both are evolution of the Zero Energy Building (ZEB) concept. RES innovations backed up by signal processing, simulation models and ICT tools were embedded into the building structures in order to implement a new predictive energy management concept. In addition, nano-coatings, produced by TiO2 and ITO nano-particles, were deposited on the IEB structural elements and especially on the window panes and the PV glass covers. They exhibited promising SSP values which lowered the cooling loads and increased the PV modules yield. Both pilot IEB units were equipped with an on-line dynamic hourly solar radiation prediction model, implemented by sensors and the related software to manage effectively the energy source, the loads and the storage or the backup system. The IEB energy sources covered the thermal loads via a south façade embedded in the wall and a solar roof which consists of a specially designed solar collector type, while a PV generator is part of the solar roof, like a compact BIPV in hybrid configuration to a small wind turbine.

  3. Intelligent energy buildings based on RES and nanotechnology

    Science.gov (United States)

    Kaplanis, S.; Kaplani, E.

    2015-12-01

    The paper presents the design features, the energy modelling and optical performance details of two pilot Intelligent Energy Buildings, (IEB). Both are evolution of the Zero Energy Building (ZEB) concept. RES innovations backed up by signal processing, simulation models and ICT tools were embedded into the building structures in order to implement a new predictive energy management concept. In addition, nano-coatings, produced by TiO2 and ITO nano-particles, were deposited on the IEB structural elements and especially on the window panes and the PV glass covers. They exhibited promising SSP values which lowered the cooling loads and increased the PV modules yield. Both pilot IEB units were equipped with an on-line dynamic hourly solar radiation prediction model, implemented by sensors and the related software to manage effectively the energy source, the loads and the storage or the backup system. The IEB energy sources covered the thermal loads via a south façade embedded in the wall and a solar roof which consists of a specially designed solar collector type, while a PV generator is part of the solar roof, like a compact BIPV in hybrid configuration to a small wind turbine.

  4. Les frontières de la violence au Kenya

    Directory of Open Access Journals (Sweden)

    Claire Médard

    2008-03-01

    Full Text Available Au cours des violences post électorales récentes, au Kenya, de nombreux observateurs ont été surpris par la forme prise par les protestations partisanes. Elle nous rappelle que la fabrique territoriale de l’ethnicité est toujours d’actualité dans ce pays. La réactivation de frontières internes qui portent la marque des violences du passé, certaines héritées de la colonisation et d’autres renégociées depuis l’indépendance, ont mis en péril l’Etat.During the recent post electoral crisis in Kenya, the turn of the protest took many by surprise. We were reminded that the making of ethnicity is on ongoing process in which violence plays a part. New boundaries have appeared, re-enacting old divisions and creating new rifts. Once the mark of administration, internal boundaries now threaten the existence of the State.

  5. Above 8GHz Static T-Flip-Flop Operation using FT=22.9GHz GaAs MESFETs

    DEFF Research Database (Denmark)

    Riishøj, J; Danielsen, Per Lander

    1992-01-01

    A static SCFL Toggle Flip-Flop GaAs IC having maximum operating frequency of Fdiv=8.25GHz has been designed using a commercially available GaAs MESFET foundry service. The average Ft for the present wafer is Ft=22.9GHz giving a very high Fdiv/Ft-ratio of Fdiv/Ft=0.36. In addition output voltage...

  6. Persone e cose: res communes omnium: prospettive sistematiche tra diritto romano e tradizione romanistica

    OpenAIRE

    Sini, Francesco

    2008-01-01

    Sommario: 1. La summa divisio rerum di Marciano e dell’Imperatore Giustiniano: res e forme di appartenenza tra universalismo e particolarismo giuridico. – 2. Res communes omnium nel Diritto romano (aria, acqua, mare e litora maris). – 3. Brevi cenni alle vicende storiche della categoria res communes omnium. – 4. Le res publicae. – 5. Diritto romano nella Sardegna medioevale e moderna. – 6. Uomini e forme comunitarie di appartenenza della terra nel diritto e nella storia del Popolo Sardo. – 7....

  7. Res Publica jäi järjekordselt ilma mitmest nimekast liikmest / Tuuli Koch, Kärt Anvelt

    Index Scriptorium Estoniae

    Koch, Tuuli

    2005-01-01

    Oma lahkumiset Res Publicast teatasid erakonna esimene esimees Rein Taagepera, tema abikaasa Mare Taagepera, akadeemik Jaan Einasto ja 2002. aastal erakonna esimeheks kandideerinud Lauri Aaspõllu. Rein Taagepera põhjendas otsust Res Publica liikumisega paremtsentrist paremäärmusse. Lisa: Tuntud inimesi, kes seni Res Publicast lahkunud. Vt. samas lühiintervjuud Jaan Einastoga: Res Publica peab tegema koostööd

  8. Der Einsatz von Online-Datenbanken für Objektinnovationen im Systemgeschäft

    OpenAIRE

    Noch, Rainer

    1990-01-01

    Der Einsatz von Online-Datenbanken für Objektinnovationen im Systemgeschäft. - Augsburg : FGM-Verl., 1990. - 62, LVII S. - Zugl.: Augsburg, Univ., Diplomarb. - (Arbeitspapiere zur Schriftenreihe Schwerpunkt Marketing ; 31)

  9. Observational constraints on f(T) gravity from varying fundamental constants

    Energy Technology Data Exchange (ETDEWEB)

    Nunes, Rafael C.; Bonilla, Alexander [Universidade Federal de Juiz de Fora, Departamento de Fisica, Juiz de Fora, MG (Brazil); Pan, Supriya [Indian Institute of Science Education and Research, Kolkata, Department of Physical Sciences, Mohanpur, West Bengal (India); Saridakis, Emmanuel N. [Pontificia Universidad de Catolica de Valparaiso, Instituto de Fisica, Valparaiso (Chile); National Technical University of Athens, Physics Division, Athens (Greece); Baylor University, CASPER, Physics Department, Waco, TX (United States)

    2017-04-15

    We use observations related to the variation of fundamental constants, in order to impose constraints on the viable and most used f(T) gravity models. In particular, for the fine-structure constant we use direct measurements obtained by different spectrographic methods, while for the effective Newton constant we use a model-dependent reconstruction, using direct observational Hubble parameter data, in order to investigate its temporal evolution. We consider two f(T) models and we quantify their deviation from Λ CDM cosmology through a sole parameter. Our analysis reveals that this parameter can be slightly different from its Λ CDM value, however, the best-fit value is very close to the Λ CDM one. Hence, f(T) gravity is consistent with observations, nevertheless, as every modified gravity, it may exhibit only small deviations from Λ CDM cosmology, a feature that must be taken into account in any f(T) model-building. (orig.)

  10. FT-IR, Raman and DFT studies on the vibrational spectra of 2,2-bis ...

    African Journals Online (AJOL)

    propane (baep) were examined both experimentally and theoretically including FT-IR and Raman spectroscopic methods. Among the possible structural configurations, 30 of them were handled in the framework of this study. The structural ...

  11. Overexpression of PaFT gene in the wild orchid Phalaenopsis amabilis (L.) Blume

    Science.gov (United States)

    Semiarti, Endang; Mercuriani, Ixora S.; Rizal, Rinaldi; Slamet, Agus; Utami, Bekti S.; Bestari, Ida A.; Aziz-Purwantoro, Moeljopawiro, S.; Jang, Soenghoe; Machida, Y.; Machida, C.

    2015-09-01

    To shorten vegetative stage and induce transition from vegetative to reproductive stage in orchids, we overexpressed Phalaenopsis amabilis Flowering LocusT (PaFT) gene under the control of Ubiquitin promoter into protocorm of Indonesian Wild Orchid Phalaenopsis amabilis (L.) Blume. The dynamic expression of vegetative gene Phalaenopsis Homeobox1 (POH1) and flowering time gene PaFT has been analyzed. Accumulation of mRNA was detected in shoot and leaves of both transgenic and non transgenic plants by using Reverse transcriptase-PCR (RT-PCR) with specific gene primers for POH1 and PaFT in 24 months old plants. To analyze the POH1 and PaFT genes, three pairs of degenerate primers PaFT degF1R1, F2R2 and F3R3 that amplified 531 bp PaFT cDNA were used. We detected 700 bp PaFTcDNA from leaves and shoots of transgenic plants, but not in NT plants. POH1 mRNA was detected in plants. PaFT protein consists of Phospatidyl Ethanolamine-Binding Protein (PEBP) in interval base 73-483 and CETS family protein at base 7-519, which are important motif for transmembrane protein. We inserted Ubipro::PaFT/pGAS101 into P. amabilis protocorm using Agrobacterium. Analysis of transgenic plants showed that PaFTmRNA was accumulated in leaves of 12 months after sowing, although it is not detected in non transgeic plants. Compare to the wild type (NT plants), ectopic expression of PaFT shows alter phenotype as follows: 31% normal, 19% with short-wavy leaves, 5% form rosette leaves and 45% produced multishoots. Analysis of protein profiles of trasgenic plants showed that a putative PaFT protein (MW 19,7 kDa) was produced in 1eaves and shoots.This means that at 12 months, POH1 gene expression gradually decreased/negatively regulated, the expression of PaFT gene was activated, although there is no flower initiation yet. Some environmental factors might play a role to induce inflorescens. This experiment is in progress.

  12. Determination of polymer content in energetic materials by FT-IR

    Directory of Open Access Journals (Sweden)

    Elizabeth C. Mattos

    2009-06-01

    Full Text Available A new methodology was developed to characterize and to quantify the polymer content in PBX (HMX/Viton by Fourier Transform Infrared Spectroscopy (FT-IR, using the Termogravimetric analysis (TG as reference techniques for the quantitative method. The quantification methodology, proposed by us, using the Fourier transform infrared-attenuated total reflectance (FT-IR/ATR showed excellent results, being faster than the usual methodologies and can eliminate the generation of chemical residues.

  13. Vibrational spectra (FT-IR, FT-Raman), frontier molecular orbital, first hyperpolarizability, NBO analysis and thermodynamics properties of Piroxicam by HF and DFT methods

    Science.gov (United States)

    Suresh, S.; Gunasekaran, S.; Srinivasan, S.

    2015-03-01

    The solid phase FT-IR and FT-Raman spectra of 4-Hydroxy-2-methyl-N-(2-pyridinyl)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide (Piroxicam) have been recorded in the region 4000-400 and 4000-100 cm-1 respectively. The molecular geometry, harmonic vibrational frequencies and bonding features of piroxicam in the ground state have been calculated by Hartree-Fock (HF) and density functional theory (DFT) methods using 6-311++G(d,p) basis set. The calculated harmonic vibrational frequencies are scaled and they are compared with experimental obtained by FT-IR and FT-Raman spectra. A detailed interpretation of the vibrational spectra of the title compound has been made on the basis of the calculated potential energy distribution (PED). The electronic properties, such as HOMO and LUMO energies, molecular electrostatic potential (MESP) are also performed. The linear polarizability (α) and the first order hyper polarizability (β) values of the title compound have been computed. The molecular stability arising from hyper conjugative interaction, charge delocalization has been analyzed using natural bond orbital (NBO) analysis.

  14. Spectroscopic (NMR, UV, FT-IR and FT-Raman) analysis and theoretical investigation of nicotinamide N-oxide with density functional theory.

    Science.gov (United States)

    Atac, Ahmet; Karabacak, Mehmet; Kose, Etem; Karaca, Caglar

    2011-12-01

    The spectroscopic properties of the nicotinamide N-oxide (abbreviated as NANO, C(6)H(6)N(2)O(2)) were examined by FT-IR, FT-Raman, NMR and UV techniques. FT-IR and FT-Raman spectra in solid state were observed in the region 4000-400 cm(-1) and 3500-50 cm(-1), respectively. The (1)H and (13)C NMR spectra were recorded in DMSO. The UV absorption spectrum of the compound that dissolved in water was recorded in the range of 200-800 nm. The structural and spectroscopic data of the molecule in the ground state were calculated by using Density Functional Theory (DFT) employing B3LYP methods with the 6-311++G(d,p) basis set. The geometry of the molecule was fully optimized, vibrational spectra were calculated and fundamental vibrations were assigned on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanics (SQM) method and PQS program. The optimized structure of compound was interpreted and compared with the reported experimental values. The observed vibrational wavenumbers, absorption wavelengths and chemical shifts were compared with calculated values. As a result, the optimized geometry and calculated spectroscopic data show a good agreement with the experimental results. Copyright © 2011 Elsevier B.V. All rights reserved.

  15. Res Publicat on täna vaja rohkem kui kunagi varem / Taavi Veskimägi

    Index Scriptorium Estoniae

    Veskimägi, Taavi, 1974-

    2005-01-01

    Res Publica esimees seab erakonnale ülesandeks selgitada inimestele, et Res Publicat võib usaldada. Ta selgitab, et Res Publica parempoolne poliitika tähendab ka hoolimist nendest, kes ei saa endaga hakkama. Vt. samas: Viimased kampaaniapäevad

  16. Dynamique de fréquentation des grands mammifères dans une ...

    African Journals Online (AJOL)

    SARAH

    31 juil. 2016 ... RÉSUMÉ. Objectifs : Dans le but de connaitre les animaux fréquentant les clairières (ou Baï) forestières au Gabon, une étude sur la fréquentation du Baï de Momba par les grands mammifères a été conduite durant la petite saison des pluies pendant deux mois du 19 février au 13 mars 2012. Méthodologie ...

  17. Relatório de Projeto - Gestão de Resíduos Hospitalares

    OpenAIRE

    Martins, Daniela

    2015-01-01

    Devido à natureza, diversidade e perigosidade dos resíduos hospitalares (RH) é necessário adotar procedimentos específicos na sua gestão. A existência deste tipo de resíduos acarreta um importante problema de saúde pública e ambiental devido aos perigos potenciais de contaminação química e biológica. Este facto conduziu ao aumento das preocupações com os cuidados a ter com os resíduos hospitalares, pondo em prática operações da gestão de resíduos de forma a prevenir ou reduzir a produção d...

  18. Res Publica ja Isamaaliit ühendavad jõud / Urmo Kübar, Rauno Veri

    Index Scriptorium Estoniae

    Kübar, Urmo, 1978-

    2006-01-01

    Res Publica esimees Taavi Veskimägi ja Isamaaliidu esimees Tõnis Lukas kirjutasid alla ühiste kavatsuste deklaratsioonile, milles nad teevad ettepaneku moodustada ühine erakond. Lisad: Erakonna Eesti Eest deklaratsioon; Lühiülevaade ajaloost

  19. Res Publica üldkogu hääletab poliitilisi resolutsioone / Lauri Tankler

    Index Scriptorium Estoniae

    Tankler, Lauri

    2004-01-01

    Res Publica üldkogul hääletusele pandavate resolutsioonide eesmärgiks on teavitada avalikkust erakonna seisukohtadest. Olulisemad resolutsioonid on ette valmistatud ideoloogia, majanduse, hariduse ja sotsiaalpoliitika valdkonnas

  20. Isamaaliit tühistab paljud Res Publica teod / Kai Kalamees

    Index Scriptorium Estoniae

    Kalamees, Kai

    2006-01-01

    Isamaaliidu esimehe Tõnis Lukas peab vajalikuks kohtunike ja politseinike parteistumist soodustava seadusesätte tühistamist. Isamaaliit ja Res Publica on eri meelt presidendi valimiskorra küsimuses. Lisa: Reiljan: 2007. aastal võidavad vasakparteid

  1. Languses Res Publica otsib kohalike valimiste eel uusi partnereid / Tuuli Koch

    Index Scriptorium Estoniae

    Koch, Tuuli

    2005-01-01

    Res Publica otsib koostöövõimalusi teiste erakondadega, et võita valitsusliidu kaaslast Reformierakonda suuremates linnades sügisestel kohalikel valimistel. Lisa: Ripakil saadikud Reformierakonda?

  2. Isamaaliit ja Res Publica sammuvad edasi käsikäes / Hannes Krause

    Index Scriptorium Estoniae

    Krause, Hannes

    2006-01-01

    Isamaaliit ja Res Publica kiitsid Pärnus toimunud suurkogudel erakondade ühinemise heaks, jätkub töö programmiga ning ühise peaministrikandidaadi leidmine. Lisa: Väljakutse: peaministrikandidaat

  3. RES-E Support Policies In The Baltic States: Development Aspect (Part I

    Directory of Open Access Journals (Sweden)

    Bobinaite V.

    2015-02-01

    Full Text Available Despite quite similar conditions (natural resources for electricity production from renewable energy sources (RES-E in three Baltic States (Estonia, Latvia and Lithuania, significant differences exist in these countries as to the RES-E production volume. In Latvia this volume is the highest, while in Estonia and Lithuania it is half as high. One of the factors that determine the RES-E production volumes is support policies, which in the Baltic States are different. The main objective of this work was to analyze and compare these support policies. The results have shown that for rapid RES-E development the most effective policy is to be market-oriented (as in Estonia, whereas for more stable development such policy should be producer-oriented (as in Lithuania.

  4. S. Res. 445: Senate Committee Reorganization for Homeland Security and Intelligence Matters

    National Research Council Canada - National Science Library

    Rundquist, Paul S; Davis, Christopher M

    2004-01-01

    .... Following four days of debate and amendment, on October 9, 2004, the Senate passed S.Res. 445, a resolution that implemented a number of the working group's suggestions regarding Senate Committee reorganization...

  5. Res Publica tahab muuta Riigikogu kuluhüvitiste süsteemi / Alari Rammo

    Index Scriptorium Estoniae

    Rammo, Alari

    2003-01-01

    Riigikogu Res Publica fraktsiooni ettepanekutest reformida Riigikogu liikmetele ette nähtud kuluhüvitiste süsteemi. Tabel: Kasutatud kuluhüvitised seisuga 15. oktoober 2003. Kommenteerib Urmo Kübar

  6. GmFT2a polymorphism and maturity diversity in soybeans.

    Science.gov (United States)

    Jiang, Bingjun; Yue, Yanlei; Gao, Youfei; Ma, Liming; Sun, Shi; Wu, Cunxiang; Hou, Wensheng; Lam, Hon-Ming; Han, Tianfu

    2013-01-01

    Soybean is a short-day crop of agricultural, ecological, and economic importance. The sensitive photoperiod responses significantly limit its breeding and adaptation. GmFT2a, a putative florigen gene with different transcription profiles in two cultivars (late-maturing Zigongdongdou and early-maturing Heihe 27) with different maturity profiles, is key to flowering and maturation. However, up to now, its role in the diverse patterns of maturation in soybeans has been poorly understood. Eighty varieties, including 19 wild accessions, covering 11 of all 13 maturity groups, were collected. They were planted in pots and maintained under different photoperiodicity conditions (SD, short day; LD, long day; and ND, natural day). The day to first flowering was recorded and the sensitivity to photoperiod was investigated. Polymorphisms in the GmFT2a coding sequence were explored by searching the known SNP database (NCBI dbSNP). The GmFT2a promoter regions were then cloned from these varieties and sequenced. Further polymorphism and association analyses were conducted. These varieties varied greatly in time to first flowering under ND and exhibited a consecutive distribution of photoperiod sensitivity, which suggested that there is rich diversity in flowering time. Furthermore, although GmFT2a had only one known synonymous SNP in the coding sequence, there were 17 haplotypes of the GmFT2a promoter region, HT06 of which was extremely abundant. Further association analysis found some SNPs that might be associated with day to first flowering and photoperiod sensitivity. Although GmFT2a is a key flowering gene, GmFT2a polymorphism does not appear to be responsible for maturity diversity in soybean.

  7. Utilisation et gestion des pesticides en cultures maraîchères : cas de ...

    African Journals Online (AJOL)

    SARAH

    30 nov. 2017 ... Mises à part ces deux raisons majeures, un des maraîchers enquêtés a également évoqué la grande valeur marchande des cultures maraîchères, notamment les légumes fruits dont la tomate, le poivron. Tableau 2 : Principales cultures maraîchères cultivées, et les principales raisons de leurs choix par les ...

  8. Rationales for technology-specific RES support and their relevance for German policy

    International Nuclear Information System (INIS)

    Gawel, Erik; Lehmann, Paul; Purkus, Alexandra; Söderholm, Patrik; Witte, Katherina

    2017-01-01

    In order to achieve cost-effective RES-E deployment it is often argued that technology-neutral support schemes for renewables are indispensable. Against this background, RES-E support policies making widely use of technology differentiation in remuneration settings, e.g. across the EU, are frequently criticized from a theoretical point of view. However, in this paper we provide a systematic critique of the technology neutrality concept as a foundation for designing policy support schemes in the RES-E technology field. Specifically, the main objective of the paper is to scrutinize the arguments for technology-neutrality, and discuss three conceptual arguments for why technology-specific support schemes could in fact help minimize the societal costs of reaching future RES-E targets. We also briefly address different political economy concerns, which could constrain the choice of cost-effective policy support schemes, and that have to be taken into account for economic policy advice. For empirical illustration of the key arguments we refer to the case of German RES-E policy-making. The central conclusion from this paper is that technology-specific RES-E support schemes may generate significant economic benefits, particularly if technology markets work imperfectly and in second-best policy settings with additional non-internalized market failures. - Highlights: • Three theoretical cost-effectiveness reasons for technology-specific RES-E support. • German case study to show relevance of theoretical arguments for policy-making. • Political economy constraints to technology-neutral support are demonstrated. • Technology-specific RES-E support may generate significant economic benefits.

  9. Ressources minières en Afrique : Quelle réglementation pour le ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Ressources minières en Afrique : Quelle réglementation pour le développement ? Couverture du livre Ressources minières en Afrique : Quelle réglementation pour le développement ? Directeur(s):. Bonnie Campbell. Maison(s) d'édition: Presses de l'Université du Québec, CRDI. 6 juillet 2009. ISBN : 9782760525214.

  10. The performances of standard and ResMed masks during bag-valve-mask ventilation.

    Science.gov (United States)

    Lee, Hyoung Youn; Jeung, Kyung Woon; Lee, Byung Kook; Lee, Seung Joon; Jung, Yong Hun; Lee, Geo Sung; Min, Yong Il; Heo, Tag

    2013-01-01

    A tight mask seal is frequently difficult to obtain and maintain during single-rescuer bag-valve-mask (BVM) ventilation. The ResMed mask (Bella Vista, NSW, Australia) is a continuous-positive-airway-pressure mask (CM) designed for noninvasive ventilation. In this study, we compared the ventilation performances of a standard mask (SM) and a ResMed CM using a simulation manikin in an out-of-hospital single-rescuer BVM ventilation scenario. Thirty emergency medical technicians (EMTs) performed two 2-minute attempts to ventilate a simulation manikin using BVM ventilation, alternatively, with the SM or the ResMed CM in a randomized order. Ventilation parameters including tidal volume and peak airway pressure were measured using computer analysis software connected to the simulation manikin. Successful volume delivery was defined as delivery of 440-540 mL of tidal volume in accord with present cardiopulmonary resuscitation guidelines. BVM ventilation using the ResMed CM produced higher mean (± standard deviation) tidal volumes (452 ± 50 mL vs. 394 ± 113 mL, p = 0.014) and had a higher proportion of successful volume deliveries (65.3% vs. 26.7%, p < 0.001) than that using the SM. Peak airway pressure was higher in BVM ventilation using the ResMed CM (p = 0.035). Stomach insufflation did not occur during either method. Twenty-nine of the participants (96.7%) preferred BVM ventilation using the ResMed CM. BVM ventilations using ResMed CM resulted in a significantly higher proportion of successful volume deliveries meeting the currently recommended range of tidal volume. Clinical studies are needed to determine the value of the ResMed CM for BVM ventilation.

  11. Isamaa ja Res Publica liit tõotab neile kõrget kohta edetabelis / Rasmus Kagge

    Index Scriptorium Estoniae

    Kagge, Rasmus, 1977-

    2006-01-01

    Ilmunud ka: Postimees : na russkom jazõke 10. apr. lk. 7. TNS Emori märtsikuu erakondade populaarsusuuringu tulemused näitavad, et Res Publicaga liituda otsustanud Isamaaliit on tõusnud poliitedetabelis kolmandale kohale. Res Publica reiting on endiselt madal, edetabelit juhib Keskerakond. Diagrammid: Isamaaliit kogub toetajaid tõusvas tempos. Vt. samas: Ühendpartei Eesti Eest! otsib endale uut nime

  12. Inventaire floristique et écologie des algues des rivières Kambo et ...

    African Journals Online (AJOL)

    L'objectif général de l'étude est de contribuer à la connaissance des algues des rivières Kambo et Longmayagui de Douala. Les objectifs spécifiques ont consisté à mesurer les paramètres physico-chimiques des rivières, de faire les inventaires des algues et d'en dégager les variations spatio-temporelles en relation avec ...

  13. Aerosol reduction/expansion synthesis (A-RES) for zero valent metal particles

    Science.gov (United States)

    Leseman, Zayd; Luhrs, Claudia; Phillips, Jonathan; Soliman, Haytham

    2016-04-12

    Various embodiments provide methods of forming zero valent metal particles using an aerosol-reductive/expansion synthesis (A-RES) process. In one embodiment, an aerosol stream including metal precursor compound(s) and chemical agent(s) that produces reducing gases upon thermal decomposition can be introduced into a heated inert atmosphere of a RES reactor to form zero valent metal particles corresponding to metals used for the metal precursor compound(s).

  14. Biossorção de azul de metileno utilizando resíduos agroindustriais

    Directory of Open Access Journals (Sweden)

    Andressa C. Honorato

    2015-07-01

    Full Text Available O presente trabalho avaliou a capacidade de adsorção do corante azul de metileno nos resíduos da palha de milho e da bainha do palmito pupunha in natura. A caracterização dos resíduos foi determinada utilizando-se a microscopia eletrônica de varredura e espectroscopia na região do infravermelho a qual indicou a presença de grupos carboxílicos, hidroxila e carbonila. O tempo necessário para que o sistema atingisse o equilíbrio para ambos os resíduos foi de 240 min, seguindo uma cinética descrita pelo modelo de pseudo-segunda ordem. A capacidade máxima de adsorção foi de 102,8 mg g-1 para o resíduo da palha de milho, seguindo o modelo de isoterma de Langmuir e 50,9 mg g-1 para o resíduo de palmito pupunha, sendo que o modelo que melhor se ajusta foi Freundlich. Desta forma, esses resíduos são promissores para a adsorção do corante azul de metileno em efluentes.

  15. Mastery of Content Representation (CoRes) Related TPACK High School Biology Teacher

    Science.gov (United States)

    Nasution, W. R.; Sriyati, S.; Riandi, R.; Safitri, M.

    2017-09-01

    The purpose of this study was to determine the mastery of Content Representation (CoRes) teachers related to the integration of technology and pedagogy in teaching Biology (TPACK). This research uses a descriptive method. The data were taken using instruments CoRes as the primary data and semi-structured interviews as supporting data. The subjects were biology teacher in class X MIA from four schools in Bandung. Teachers raised CoRes was analyzed using a scoring rubric CoRes with coding 1-3 then categorized into a group of upper, middle, or lower. The results showed that the two teachers in the lower category. This results means that the control of teachers in defining the essential concept in the CoRes has not been detailed and specific. Meanwhile, two other teachers were in the middle category. This means that the ability of teachers to determine the essential concepts in the CoRes are still inadequate so that still needs to be improved.

  16. Beer fermentation: monitoring of process parameters by FT-NIR and multivariate data analysis.

    Science.gov (United States)

    Grassi, Silvia; Amigo, José Manuel; Lyndgaard, Christian Bøge; Foschino, Roberto; Casiraghi, Ernestina

    2014-07-15

    This work investigates the capability of Fourier-Transform near infrared (FT-NIR) spectroscopy to monitor and assess process parameters in beer fermentation at different operative conditions. For this purpose, the fermentation of wort with two different yeast strains and at different temperatures was monitored for nine days by FT-NIR. To correlate the collected spectra with °Brix, pH and biomass, different multivariate data methodologies were applied. Principal component analysis (PCA), partial least squares (PLS) and locally weighted regression (LWR) were used to assess the relationship between FT-NIR spectra and the abovementioned process parameters that define the beer fermentation. The accuracy and robustness of the obtained results clearly show the suitability of FT-NIR spectroscopy, combined with multivariate data analysis, to be used as a quality control tool in the beer fermentation process. FT-NIR spectroscopy, when combined with LWR, demonstrates to be a perfectly suitable quantitative method to be implemented in the production of beer. Copyright © 2014 Elsevier Ltd. All rights reserved.

  17. Molecular structure and vibrational analysis of Trifluoperazine by FT-IR, FT-Raman and UV-Vis spectroscopies combined with DFT calculations.

    Science.gov (United States)

    Rajesh, P; Gunasekaran, S; Gnanasambandan, T; Seshadri, S

    2015-02-25

    The complete vibrational assignment and analysis of the fundamental vibrational modes of Trifluoperazine (TFZ) was carried out using the experimental FT-IR, FT-Raman and UV-Vis data and quantum chemical studies. The observed vibrational data were compared with the wavenumbers derived theoretically for the optimized geometry of the compound from the DFT-B3LYP gradient calculations employing 6-31G (d,p) basis set. Thermodynamic properties like entropy, heat capacity and enthalpy have been calculated for the molecule. The HOMO-LUMO energy gap has been calculated. The intramolecular contacts have been interpreted using natural bond orbital (NBO) and natural localized molecular orbital (NLMO) analysis. Important non-linear properties such as first hyperpolarizability of TFZ have been computed using B3LYP quantum chemical calculation. Copyright © 2014 Elsevier B.V. All rights reserved.

  18. Spectroscopic (FT-IR, FT-Raman, UV and NMR) investigation and NLO, HOMO-LUMO, NBO analysis of organic 2,4,5-trichloroaniline.

    Science.gov (United States)

    Govindarajan, M; Karabacak, M; Periandy, S; Tanuja, D

    2012-11-01

    In this work, the experimental and theoretical study on the molecular structure and vibrational spectra of 2,4,5-trichloroaniline (C(6)H(4)NCl(3), abbreviated as 2,4,5-TClA) were studied. The FT-IR and FT-Raman spectra were recorded. The molecular geometry and vibrational frequencies in the ground state were calculated by using the Hartree-Fock (HF) and density functional theory (DFT) methods (B3LYP) with 6-311++G(d,p) basis set. Comparison of the observed fundamental vibrational frequencies of 2,4,5-TClA with calculated results by HF and DFT indicates that B3LYP is superior to HF method for molecular vibrational problems. The difference between the observed and scaled wavenumber values of most of the fundamentals is very small. The theoretically predicted FT-IR and FT-Raman spectra of the title molecule have been constructed. A study on the electronic properties, such as HOMO and LUMO energies, were performed by time-dependent DFT (TD-DFT) approach. Besides, molecular electrostatic potential (MEP) and thermodynamic properties were performed. The electric dipole moment (μ) and the first hyperpolarizability (β) values of the investigated molecule were computed using ab initio quantum mechanical calculations. The calculated results also show that the 2,4,5-TClA molecule may have microscopic nonlinear optical (NLO) behavior with non-zero values. Mulliken atomic charges of 2,4,5-TClA was calculated and compared with aniline and chlorobenzene molecules. The (13)C nuclear magnetic resonance (NMR) chemical shifts of the molecule were calculated by the gauge independent atomic orbital (GIAO) method and compared with experimental results. Copyright © 2012 Elsevier B.V. All rights reserved.

  19. Molecular structure, spectroscopic characterization (FT-IR, FT-Raman, UV and NMR), HOMO and LUMO analysis of 3-ethynylthiophene with DFT quantum chemical calculations.

    Science.gov (United States)

    Karabacak, Mehmet; Bilgili, Sibel; Mavis, Tugba; Eskici, Mustafa; Atac, Ahmet

    2013-11-01

    In this work, FT-IR, FT-Raman, UV and NMR spectra of 3-ethynylthiophene (3-ETP, C6H4S) were carried out by using density functional theory DFT/B3LYP method with the 6-311++G(d,p), 6-311+G(d,p), 6-311G(d,p), 6-31++G(d,p), 6-31+G(d,p), 6-31G(d,p) basis sets. FT-IR and FT-Raman spectra were recorded in the regions of 3500-400cm(-1) and 3500-50cm(-1), respectively. The geometrical parameters, energies and wavenumbers were obtained and the complete assignments of fundamental vibrations were performed on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanics (SQM) method and PQS program. The (1)H, (13)C and HMQC ((1)H-(13)C correlation) NMR spectra in chloroform (CDCl3) were recorded and calculated. The UV spectrum of investigated compound were recorded in the region of 200-400nm in ethanol solution. The electronic properties, such as excitation energies, absorption wavelengths, HOMO and LUMO energies were performed by DFT/B3LYP approach and the results were compared with experimental observations. The thermodynamic properties such zero-point vibrational energy, thermal energy, specific heat capacity, rotational constants, entropy, and dipole moment of the studied compound were calculated. As a result, the calculated results were compared with the observed data and found to be in good agreement. Copyright © 2013 Elsevier B.V. All rights reserved.

  20. Spontaneous atopic dermatitis-like symptoms in a/a ma ft/ma ft/J flaky tail mice appear early after birth.

    Directory of Open Access Journals (Sweden)

    Magdalini Kypriotou

    Full Text Available Loss-of-function mutations in human profilaggrin gene have been identified as the cause of ichthyosis vulgaris (IV, and as a major predisposition factor for atopic dermatitis (AD. Similarly, flaky tail (a/a ma ft/ma ft/J mice were described as a model for IV, and shown to be predisposed to eczema. The aim of this study was to correlate the flaky tail mouse phenotype with human IV and AD, in order to dissect early molecular events leading to atopic dermatitis in mice and men, suffering from filaggrin deficiency. Thus, 5-days old flaky tail pups were analyzed histologically, expression of cytokines was measured in skin and signaling pathways were investigated by protein analysis. Human biopsies of IV and AD patients were analyzed histologically and by real time PCR assays. Our data show acanthosis and hyperproliferation in flaky tail epidermis, associated with increased IL1β and thymic stromal lymphopoietin (TSLP expression, and Th2-polarization. Consequently, NFκB and Stat pathways were activated, and IL6 mRNA levels were increased. Further, quantitative analysis of late epidermal differentiation markers revealed increased Small proline-rich protein 2A (Sprr2a synthesis. Th2-polarization and Sprr2a increase may result from high TSLP expression, as shown after analysis of 5-days old K14-TSLP tg mouse skin biopsies. Our findings in the flaky tail mouse correlate with data obtained from patient biopsies of AD, but not IV. We propose that proinflammatory cytokines are responsible for acanthosis in flaky tail epidermis, and together with the Th2-derived cytokines lead to morphological changes. Accordingly, the a/a ma ft/ma ft/J mouse model can be used as an appropriate model to study early AD onset associated with profilaggrin deficiency.

  1. Fourier-Transform Raman Spectroscopy of Polymers Caractérisation de polymères par spectroscopie Raman à transformée de Fourier

    Directory of Open Access Journals (Sweden)

    Siesler H. W.

    2006-11-01

    Full Text Available The recent extension of the Fourier-Transform (FT technique to the Raman effect has launched Raman spectroscopy into a new era of polymer chemical and physical applications. Thus, the increase in signal-to-noise ratio and the improvement in time resolution have largely enhanced the potential of FT-Raman spectroscopy for analytical applications, the characterization of time-dependent phenomena and the on-line combination with other techniques. Primarily the suppression of fluorescence by shifting the excitation line to the near-infrared (NIR region has contributed to the fast acceptance as an industrial routine tool. Furthermore, the application of fiber optics has opened up the areas of process-control and remote sensing. Les applications de la spectroscopie Raman dans le domaine des polymères sont entrées dans une ère nouvelle, grâce aux récents développements de la technique à transformée de Fourier avec excitation dans le proche infrarouge. L'augmentation du rapport signal sur bruit et l'amélioration de la résolution temporelle ont fortement renforcé les potentialités de la technique en ce qui concerne les applications analytiques, la caractérisation de phénomènes qui dépendent du temps et le couplage en ligne avec d'autres techniques. La suppression du phénomène de fluorescence par déplacement de la longueur d'onde de l'excitatrice dans le proche infrarouge a contribué à l'intégration rapide de l'outil en site industriel. L'emploi de fibres optiques a permis l'accroissement des applications dans le domaine du contrôle des procédés et d'analyser à distance.

  2. FT Raman spectroscopy in the study of human teeth under medications demineralization

    Science.gov (United States)

    de Sant'Anna, G. R.; Nascimento, E. B.; Higa, A. G.; Santos, E. A. P.; Espirito Santo, A. M.; Martín, A. A.

    2015-06-01

    The in situ study evaluated antihistamine (DA) and bronchodilator(DB) drugs actions on dental enamel using FT Raman spectroscopy. Analysis of pH drugs were permorfed, DA 1.48 and DB 2.90. Enamel (n=24) were analysed by FT - Raman and randomly distributed in control group (CG) and experimental groups (GEA and GEB), specimens fixed in palatine appliances. In CG, dripped 20% sucrose (8Xday/3 min)/7 days. In GEA, 20% sucrose (8Xday/3 min) + drug (4Xday/3 min). In GEB, 20% sucrose (8Xday/3 min) B + drug (4Xday/3 min). FT- Raman analysis was performed again. Data analyzed by Student t test and ANOVA Differences in peak intensity of carbonate (CO3) /phosphate (PO4) (pdrugs, reduction in the amount of carbonate, organic and inorganic components were observed, denoting possible demineralization.

  3. Dynamics and Predictors of Serum TSH and fT4 Reference Limits in Early Pregnancy

    DEFF Research Database (Denmark)

    Laurberg, Peter; Andersen, Stine Linding; Hindersson, Peter

    2016-01-01

    CONTEXT: Thyroid hormones are important developmental factors and levels should be adequate both in the pregnant woman and in the fetus. However, there is no consensus on maternal thyroid test reference limits in early pregnancy. OBJECTIVE: Estimation of week-to-week changes in and predictors...... of TSH and free T4 (fT4) reference limits in the first trimester of pregnancy. DESIGN: Measurement of TSH and fT4 in biobank sera collected in pregnancy weeks 5-19 from a random sample of the Danish National Birth Cohort that enrolled 101 032 pregnant in 1996-2002. SETTING: National cohort of pregnant...... women. PARTICIPANTS: Healthy participants (n = 6671) were identified and individual characteristics retrieved using interview data and data from Danish national health registers. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Reference limits for TSH and fT4 in each first trimester pregnancy week...

  4. A perturbative approach to neutron stars in f(T, T)-gravity

    Energy Technology Data Exchange (ETDEWEB)

    Pace, Mark; Said, Jackson Levi [University of Malta, Department of Physics, Msida (Malta); University of Malta, Institute of Space Sciences and Astronomy, Msida (Malta)

    2017-05-15

    We derive a Tolman-Oppenheimer-Volkoff equation in neutron star systems within the modified f(T, T)-gravity class of models using a perturbative approach. In our approach f(T, T)-gravity is considered to be a static spherically symmetric space-time. In this instance the metric is built from a more fundamental vierbein which can be used to relate inertial and global coordinates. A linear function f = T(r) + T(r) + χh(T, T) + O(χ{sup 2}) is taken as the Lagrangian density for the gravitational action. Finally we impose the polytropic equation of state of neutron star upon the derived equations in order to derive the mass profile and mass-central density relations of the neutron star in f(T, T)-gravity. (orig.)

  5. Some aspects of reconstruction using a scalar field in f(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Chakrabarti, Soumya [Indian Institute of Technology, Centre for Theoretical Studies, Kharagpur (India); Said, Jackson Levi [University of Malta, Institute of Space Sciences and Astronomy, Msida, MSD (Malta); Farrugia, Gabriel [University of Malta, Department of Physics, Msida, MSD (Malta)

    2017-12-15

    General relativity characterizes gravity as a geometric property exhibited on spacetime by massive objects, while teleparallel gravity achieves the same results at the level of equations, by taking a torsional perspective of gravity. Similar to the f(R) theory teleparallel gravity can also be generalized to f(T), with the resulting field equations being inherently distinct from f(R) gravity in that they are second order, while in the former case they turn out to be fourth order. In the present case, a minimally coupled scalar field is investigated in the f(T) gravity context for several forms of the scalar field potential. A number of new f(T) solutions are found for these potentials. Their respective state parameters are also being examined. (orig.)

  6. Analytic rotating black-hole solutions in N-dimensional f(T) gravity

    Energy Technology Data Exchange (ETDEWEB)

    Nashed, G.G.L. [The British University in Egypt, Centre for Theoretical Physics, P.O. Box 43, Cairo (Egypt); Ain Shams University, Faculty of Science, Mathematics Department, Cairo (Egypt); Egyptian Relativity Group (ERG), Cairo (Egypt); El Hanafy, W. [The British University in Egypt, Centre for Theoretical Physics, P.O. Box 43, Cairo (Egypt); Egyptian Relativity Group (ERG), Cairo (Egypt)

    2017-02-15

    A non-diagonal vielbein ansatz is applied to the N-dimension field equations of f(T) gravity. An analytical vacuum solution is derived for the quadratic polynomial f(T)=T+εT{sup 2} and an inverse relation between the coupling constant ε and the cosmological constant Λ. Since the induced metric has off-diagonal components, it cannot be removed by a mere coordinate transformation, the solution has a rotating parameter. The curvature and torsion scalars invariants are calculated to study the singularities and horizons of the solution. In contrast to general relativity, the Cauchy horizon differs from the horizon which shows the effect of the higher order torsion. The general expression of the energy-momentum vector of f(T) gravity is used to calculate the energy of the system. Finally, we have shown that this kind of solution satisfies the first law of thermodynamics in the framework of f(T) gravitational theories. (orig.)

  7. HOMO-LUMO, UV, NLO, NMR and vibrational analysis of 3-methyl-1-phenylpyrazole using FT-IR, FT-RAMAN FT-NMR spectra and HF-DFT computational methods.

    Science.gov (United States)

    Carthigayan, K; Xavier, S; Periandy, S

    2015-05-05

    In this paper, the spectral analysis of 3-methyl-1-phenylpyrazole is carried out using the FT-IR, FT Raman, FT NMR and UV-Vis spectra with the help of quantum mechanical computations using HF and density functional theories. The different conformers of the compound and their minimum energies are studied using B3LYP functional with 6-311+G (d,p) basis set and the most stable conformer with minimum energy was identified and the same conformer was used for further computations. The computed wave numbers from different methods are scaled so as to agree with the experimental values and the scaling factors are reported. All the modes of vibrations are assigned and the structure the molecule is analyzed in terms of parameters like bond length, bond angle and dihedral angle predicted by both HF and B3LYP methods with 6-311+G (d,p) and 6-311++G (d,p) basis sets. The values of dipole moment (μ), polarizability (α) and hyperpolarizability (β) of the molecule are reported, using which the non-linear property of the molecule is discussed. The HOMO-LUMO mappings are reported which reveals the different charge transfer possibilities within the molecule. The isotropic chemical shifts predicted for (1)H and (13)C atoms using gauge invariant atomic orbital (GIAO) theory show good agreement with experimental shifts. NBO analysis is carried out to picture the charge transfer between the localized bonds and lone pairs. The thermodynamic properties (heat capacity, entropy and enthalpy) at different temperatures are also calculated. Copyright © 2015 Elsevier B.V. All rights reserved.

  8. AKTIP/Ft1, a New Shelterin-Interacting Factor Required for Telomere Maintenance.

    KAUST Repository

    Burla, Romina

    2015-06-25

    Telomeres are nucleoprotein complexes that protect the ends of linear chromosomes from incomplete replication, degradation and detection as DNA breaks. Mammalian telomeres are protected by shelterin, a multiprotein complex that binds the TTAGGG telomeric repeats and recruits a series of additional factors that are essential for telomere function. Although many shelterin-associated proteins have been so far identified, the inventory of shelterin-interacting factors required for telomere maintenance is still largely incomplete. Here, we characterize AKTIP/Ft1 (human AKTIP and mouse Ft1 are orthologous), a novel mammalian shelterin-bound factor identified on the basis of its homology with the Drosophila telomere protein Pendolino. AKTIP/Ft1 shares homology with the E2 variant ubiquitin-conjugating (UEV) enzymes and has been previously implicated in the control of apoptosis and in vesicle trafficking. RNAi-mediated depletion of AKTIP results in formation of telomere dysfunction foci (TIFs). Consistent with these results, AKTIP interacts with telomeric DNA and binds the shelterin components TRF1 and TRF2 both in vivo and in vitro. Analysis of AKTIP- depleted human primary fibroblasts showed that they are defective in PCNA recruiting and arrest in the S phase due to the activation of the intra S checkpoint. Accordingly, AKTIP physically interacts with PCNA and the RPA70 DNA replication factor. Ft1-depleted p53-/- MEFs did not arrest in the S phase but displayed significant increases in multiple telomeric signals (MTS) and sister telomere associations (STAs), two hallmarks of defective telomere replication. In addition, we found an epistatic relation for MST formation between Ft1 and TRF1, which has been previously shown to be required for replication fork progression through telomeric DNA. Ch-IP experiments further suggested that in AKTIP-depleted cells undergoing the S phase, TRF1 is less tightly bound to telomeric DNA than in controls. Thus, our results collectively

  9. Benefits of the HiRes 120 coding strategy combined with the Harmony processor in an adult European multicentre study.

    Science.gov (United States)

    Büchner, Andreas; Lenarz, Thomas; Boermans, Peter-Paul; Frijns, Johan H M; Mancini, Patrizia; Filipo, Roberto; Fielden, Claire; Cooper, Huw; Eklöf, Martin; Freijd, Anders; Lombaard, Suryn; Meerton, Leah; Pickerill, Margaret; Vanat, Zebunnisa; Wesarg, Thomas; Aschendorff, Antje; Kienast, Barbara; Boyle, Patrick; Arnold, Laure; Meyer, Bernard; Sterkers, Olivier; Müller-Deile, Joachim; Ambrosch, Petra; Helbig, Silke; Frachet, Bruno; Gallego, Stéphane; Truy, Eric; Jeffs, Ellen; Morant, Antonio; Marco, Jaime

    2012-02-01

    The Harmony processor was found to be reliable, comfortable and offered a substantially increased battery life compared with the previous generation processor. No significant improvement in speech understanding with HiRes was demonstrated from objective measures, but the majority of subjects showed a clear subjective preference for the combination HiRes 120/Harmony processor. To evaluate experience with the Harmony™ sound processor, together with the HiRes 120 strategy. Postlingually deafened adults implanted with a CII or HiRes 90K were included and divided into three groups: (1) experienced users using the Platinum body-worn processor; (2) experienced users who had been using other processors; (3) new users with the Harmony processor from first fitting. The latter group entered a randomized crossover protocol where half were initially fitted with HiRes and half with HiRes 120. The initial strategy was used for 3 months and the alternative for a further 3 months. Speech perception tests and questionnaires were performed. The study included 65 subjects. Implementing HiRes 120 was straightforward. The speech test group results did not show significant differences between HiRes and HiRes 120. However, the questionnaires showed significantly higher ratings for HiRes 120 in some instances. Subjects were highly satisfied with the Harmony processor.

  10. M4FT-16LL080302052-Update to Thermodynamic Database Development and Sorption Database Integration

    Energy Technology Data Exchange (ETDEWEB)

    Zavarin, Mavrik [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Glenn T. Seaborg Inst.. Physical and Life Sciences; Wolery, T. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Akima Infrastructure Services, LLC; Atkins-Duffin, C. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Global Security

    2016-08-16

    This progress report (Level 4 Milestone Number M4FT-16LL080302052) summarizes research conducted at Lawrence Livermore National Laboratory (LLNL) within the Argillite Disposal R&D Work Package Number FT-16LL08030205. The focus of this research is the thermodynamic modeling of Engineered Barrier System (EBS) materials and properties and development of thermodynamic databases and models to evaluate the stability of EBS materials and their interactions with fluids at various physico-chemical conditions relevant to subsurface repository environments. The development and implementation of equilibrium thermodynamic models are intended to describe chemical and physical processes such as solubility, sorption, and diffusion.

  11. Designing means and specifications for model FT-619 kidney function instrument

    International Nuclear Information System (INIS)

    Yu Yongding

    1988-04-01

    In this paper, it is pointed out that the model FT-619 Kidney Function Equipment is a new cost-effective nuclear medicine instrument, which takes the leading position in China. The performance of the model FT-619,especially the lead collimated scintillation detector has reached the same level as the advanced equipment in the world market. It is also described in this article in detail that the design of the lead collimator and the shielding as well as the detection efficiency have achieved the optimum level and that a comparison has been made with foreign products

  12. Transcript Profile of Flowering Regulatory Genes in VcFT-Overexpressing Blueberry Plants.

    Directory of Open Access Journals (Sweden)

    Aaron E Walworth

    Full Text Available In order to identify genetic components in flowering pathways of highbush blueberry (Vaccinium corymbosum L., a transcriptome reference composed of 254,396 transcripts and 179,853 gene contigs was developed by assembly of 72.7 million reads using Trinity. Using this transcriptome reference and a query of flowering pathway genes of herbaceous plants, we identified potential flowering pathway genes/transcripts of blueberry. Transcriptome analysis of flowering pathway genes was then conducted on leaf tissue samples of transgenic blueberry cv. Aurora ('VcFT-Aurora', which overexpresses a blueberry FLOWERING LOCUS T-like gene (VcFT. Sixty-one blueberry transcripts of 40 genes showed high similarities to 33 known flowering-related genes of herbaceous plants, of which 17 down-regulated and 16 up-regulated genes were identified in 'VcFT-Aurora'. All down-regulated genes encoded transcription factors/enzymes upstream in the signaling pathway containing VcFT. A blueberry CONSTANS-LIKE 5-like (VcCOL5 gene was down-regulated and associated with five other differentially expressed (DE genes in the photoperiod-mediated flowering pathway. Three down-regulated genes, i.e., a MADS-AFFECTING FLOWERING 2-like gene (VcMAF2, a MADS-AFFECTING FLOWERING 5-like gene (VcMAF5, and a VERNALIZATION1-like gene (VcVRN1, may function as integrators in place of FLOWERING LOCUS C (FLC in the vernalization pathway. Because no CONSTAN1-like or FLOWERING LOCUS C-like genes were found in blueberry, VcCOL5 and VcMAF2/VcMAF5 or VRN1 might be the major integrator(s in the photoperiod- and vernalization-mediated flowering pathway, respectively. The major down-stream genes of VcFT, i.e., SUPPRESSOR of Overexpression of Constans 1-like (VcSOC1, LEAFY-like (VcLFY, APETALA1-like (VcAP1, CAULIFLOWER 1-like (VcCAL1, and FRUITFULL-like (VcFUL genes were present and showed high similarity to their orthologues in herbaceous plants. Moreover, overexpression of VcFT promoted expression of all of

  13. Transcript Profile of Flowering Regulatory Genes in VcFT-Overexpressing Blueberry Plants.

    Science.gov (United States)

    Walworth, Aaron E; Chai, Benli; Song, Guo-Qing

    2016-01-01

    In order to identify genetic components in flowering pathways of highbush blueberry (Vaccinium corymbosum L.), a transcriptome reference composed of 254,396 transcripts and 179,853 gene contigs was developed by assembly of 72.7 million reads using Trinity. Using this transcriptome reference and a query of flowering pathway genes of herbaceous plants, we identified potential flowering pathway genes/transcripts of blueberry. Transcriptome analysis of flowering pathway genes was then conducted on leaf tissue samples of transgenic blueberry cv. Aurora ('VcFT-Aurora'), which overexpresses a blueberry FLOWERING LOCUS T-like gene (VcFT). Sixty-one blueberry transcripts of 40 genes showed high similarities to 33 known flowering-related genes of herbaceous plants, of which 17 down-regulated and 16 up-regulated genes were identified in 'VcFT-Aurora'. All down-regulated genes encoded transcription factors/enzymes upstream in the signaling pathway containing VcFT. A blueberry CONSTANS-LIKE 5-like (VcCOL5) gene was down-regulated and associated with five other differentially expressed (DE) genes in the photoperiod-mediated flowering pathway. Three down-regulated genes, i.e., a MADS-AFFECTING FLOWERING 2-like gene (VcMAF2), a MADS-AFFECTING FLOWERING 5-like gene (VcMAF5), and a VERNALIZATION1-like gene (VcVRN1), may function as integrators in place of FLOWERING LOCUS C (FLC) in the vernalization pathway. Because no CONSTAN1-like or FLOWERING LOCUS C-like genes were found in blueberry, VcCOL5 and VcMAF2/VcMAF5 or VRN1 might be the major integrator(s) in the photoperiod- and vernalization-mediated flowering pathway, respectively. The major down-stream genes of VcFT, i.e., SUPPRESSOR of Overexpression of Constans 1-like (VcSOC1), LEAFY-like (VcLFY), APETALA1-like (VcAP1), CAULIFLOWER 1-like (VcCAL1), and FRUITFULL-like (VcFUL) genes were present and showed high similarity to their orthologues in herbaceous plants. Moreover, overexpression of VcFT promoted expression of all of these

  14. Regular black holes in f(T) Gravity through a nonlinear electrodynamics source

    Energy Technology Data Exchange (ETDEWEB)

    Junior, Ednaldo L.B.; Rodrigues, Manuel E. [Faculdade de Física, PPGF, Universidade Federal do Pará, 66075-110, Belém, Pará (Brazil); Houndjo, Mahouton J.S., E-mail: ednaldobarrosjr@gmail.com, E-mail: esialg@gmail.com, E-mail: sthoundjo@yahoo.fr [Institut de Mathématiques et de Sciences Physiques (IMSP), 01 BP 613, Porto-Novo, Bénin (Benin)

    2015-10-01

    We seek to obtain a new class of exact solutions of regular black holes in f(T) Gravity with non-linear electrodynamics material content, with spherical symmetry in 4D. The equations of motion provide the regaining of various solutions of General Relativity, as a particular case where the function f(T)=T. We developed a powerful method for finding exact solutions, where we get the first new class of regular black holes solutions in the f(T) Theory, where all the geometrics scalars disappear at the origin of the radial coordinate and are finite everywhere, as well as a new class of singular black holes.

  15. M4FT-15LL0806062-LLNL Thermodynamic and Sorption Data FY15 Progress Report

    Energy Technology Data Exchange (ETDEWEB)

    Zavarin, M. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Wolery, T. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-08-31

    This progress report (Milestone Number M4FT-15LL0806062) summarizes research conducted at Lawrence Livermore National Laboratory (LLNL) within Work Package Number FT-15LL080606. The focus of this research is the thermodynamic modeling of Engineered Barrier System (EBS) materials and properties and development of thermodynamic databases and models to evaluate the stability of EBS materials and their interactions with fluids at various physicochemical conditions relevant to subsurface repository environments. The development and implementation of equilibrium thermodynamic models are intended to describe chemical and physical processes such as solubility, sorption, and diffusion.

  16. Aeroderivative Pratt & Whitney FT8-3 gas turbine – an interesting solution for power generation

    Directory of Open Access Journals (Sweden)

    Sorinel-Gicu TALIF

    2011-03-01

    Full Text Available The intermediate load electric power stations become more and more interesting for theelectric power market in Romania. In this context, the Combined Cycle Power Plants came as a veryattractive solution. This paper presents the results of a study regarding the use of the aeroderivativePratt & Whitney FT8-3 gas turbine, available in Romania, for the electric power generation in aCombined Cycle Power Plant. It is also analyzed the Combined Heat in Power generation with FT8-3gas turbine when saturated steam or hot water are required.

  17. Ultra-clean Fischer-Tropsch (F-T) Fuels Production and Demonstration Project

    Energy Technology Data Exchange (ETDEWEB)

    Stephen P. Bergin

    2006-06-30

    The objective of the DOE-NETL Fischer-Tropsch (F-T) Production and Demonstration Program was to produce and evaluate F-T fuel derived from domestic natural gas. The project had two primary phases: (1) fuel production of ultra-clean diesel transportation fuels from domestic fossil resources; and (2) demonstration and performance testing of these fuels in engines. The project also included a well-to-wheels economic analysis and a feasibility study of small-footprint F-T plants (SFPs) for remote locations such as rural Alaska. During the fuel production phase, ICRC partnered and cost-shared with Syntroleum Corporation to complete the mechanical design, construction, and operation of a modular SFP that converts natural gas, via F-T and hydro-processing reactions, into hydrogensaturated diesel fuel. Construction of the Tulsa, Oklahoma plant started in August 2002 and culminated in the production of over 100,000 gallons of F-T diesel fuel (S-2) through 2004, specifically for this project. That fuel formed the basis of extensive demonstrations and evaluations that followed. The ultra-clean F-T fuels produced had virtually no sulfur (less than 1 ppm) and were of the highest quality in terms of ignition quality, saturation content, backend volatility, etc. Lubricity concerns were investigated to verify that commercially available lubricity additive treatment would be adequate to protect fuel injection system components. In the fuel demonstration and testing phase, two separate bus fleets were utilized. The Washington DC Metropolitan Area Transit Authority (WMATA) and Denali National Park bus fleets were used because they represented nearly opposite ends of several spectra, including: climate, topography, engine load factor, mean distance between stops, and composition of normally used conventional diesel fuel. Fuel evaluations in addition to bus fleet demonstrations included: bus fleet emission measurements; F-T fuel cold weather performance; controlled engine dynamometer

  18. Low-Dimensional ReS2/C Composite as Effective Hydrodesulfurization Catalyst

    Directory of Open Access Journals (Sweden)

    Juan Antonio Aliaga

    2017-12-01

    Full Text Available Single-layer, ultrasmall ReS2 nanoplates embedded in amorphous carbon were synthesized from a hydrothermal treatment involving ammonium perrhenate, thiourea, tetraoctylammonium bromide, and further annealing. The rhenium disulfide, obtained as a low dimensional carbon composite (ReS2/C, was tested in the hydrodesulfurization of light hydrocarbons, using 3-methylthiophene as the model molecule, and showed enhanced catalytic activity in comparison with a sulfide CoMo/γ-Al2O3 catalyst. The ReS2/C composite was characterized by X-ray diffraction (XRD, Raman spectroscopy, N2 adsorption–desorption isotherms, scanning electron microscopy (SEM, scanning transmission electron microscopy (STEM, energy-dispersive X-ray spectroscopy (EDS, and X-ray photoelectron spectroscopy (XPS. The improved catalytic performance of this ReS2/C composite may be ascribed to the presence of a non-stoichiometric sulfur species (ReS2−x, the absence of stacking along the c-axis, and the ultra-small basal planes, which offer a higher proportion of structural sulfur defects at the edge of the layers, known as a critical parameter for hydrodesulfurization catalytic processes.

  19. Como realizar o correto descarte de resíduos de medicamentos?

    Directory of Open Access Journals (Sweden)

    Elda Falqueto

    Full Text Available A destinação final dos resíduos de origem farmacêutica é tema relevante para a saúde pública, devido às diferentes propriedades farmacológicas dos medicamentos que inevitavelmente se tornarão resíduos. Dessa forma, não poderão mais ser utilizados e deverão receber um tratamento específico. No Brasil, o correto descarte dos resíduos sólidos de origem farmacêutica é normatizado tanto pelo Ministério da Saúde quanto pelo do Meio Ambiente, que devem fornecer instrumentos para que os atores envolvidos em atividades que geram resíduos dessa natureza possam dar-lhes a disposição final adequada. No entanto, existem dificuldades que apenas poderão ser superadas com a integração de todos os envolvidos nessa questão. O objetivo deste artigo é fazer um levantamento crítico dos instrumentos legais disponibilizados pelos órgãos reguladores, situando cada ator e suas responsabilidades para o correto descarte de resíduos de medicamentos, protegendo assim a saúde pública e o meio ambiente.

  20. The preoperative serum ratio of total prostate specific antigen (PSA) to free testosterone (FT), PSA/FT index ratio, and prostate cancer. Results in 220 patients undergoing radical prostatectomy.

    Science.gov (United States)

    Porcaro, Antonio B; Caruso, Beatrice; Terrin, Alessandro; De Luyk, Nicolò; Cacciamani, Giovanni; Corsi, Paolo; Inverardi, Davide; De Marchi, Davide; Baldassarre, Roberto; Cerruto, Mariangela; Ghimenton, Claudio; Brunelli, Matteo; Zecchini Antoniolli, Stefano; Petrozziello, Aldo; Artibani, Walter

    2016-03-31

    To evaluate associations of preoperative total prostate specific antigen (PSA) to free testosterone (FT), the PSA/FT index ratio, with features of pathology prostate cancer (PCA) and to investigate its prognostic potential in clustering the PCA population. After excluding criteria, the records of 220 patients who underwent radical prostatectomy (RP) were retrospectively reviewed. Serum samples of PSA, total testosterone (TT) and FT were collected at 8.00 A.M., one month after biopsies and before RP. The PSA/FT ratio was computed in the population of patients who were clustered in groups according to ranking intervals of the PSA/FT ratio which identified at least 4 clusters which were coded as A, B, C, and D. The independent associations of the PSA/FT index ratio were assessed by statistical methods and a two-sided P < 0.05 was considered to indicate statistical significance. TT correlated to FT which was a significant predictor of PSA in the population of patients who were subsequently clustered, according to increasing interval values of the PSA/FT index ratio, in groups that showed a stronger linear association of FT with PSA. The PSA/FT index ratio significantly associated with pathology features of prostate cancer such as pathology Gleason score (pGS), invasion of the seminal vesicles (pT3b), proportion of positive cores (P+) and proportion of cancer involving the volume of the prostate. In the population of patients, TT, PSA/FT index ratio and P+ independently associated with pGS ≥ 7 and pT3b; moreover, the odds ratio (OR) of the PSA/FT index ratio resulted 9.11 which was stronger than TT (OR = 1.11) and P+ (OR = 8.84). In the PCA population, TT, PSA/FT index ratio and P+ also independently associated with pT3b PCA; interestingly, the OR of PSA/FT index resulted 54.91 which was stronger than TT (OR = 1.31) and P+ (26.43). Preoperative PSA/FT index ratio is an independent strong factor which directly associates with aggressive features of pathology PCA

  1. Assessment of Azithromycin in Pharmaceutical Formulation by Fourier-transform Infrared (FT-IR Transmission Spectroscopy

    Directory of Open Access Journals (Sweden)

    Muhammad Ali Mallah

    2011-12-01

    Full Text Available A simple, rapid and economical method for azithromycin quantification in solid tablet and capsule formulations has been developed by applying Fourier-transform Infrared (FT-IR transmission spectroscopy for regular quality monitoring. The newly developed method avoids the sample preparation, except grinding for pellet formation and does not involve consumption of any solvent as it absolutely eliminates the need of extraction. KBr pellets were employed for the appraisal of azithromycin while acquiring spectra of standards as well as samples on FT-IR. By selecting the FT-IR carbonyl band (C=O in the region 1,744–1,709 cm−1 the calibration model was developed based on simple Beer’s law. The excellent regression coefficient (R2 0.999 was accomplished for calibration set having standard error of calibration equal to 0.01 mg. The current work exposes that transmission FT-IR spectroscopy can definitely be applied to determine the exact amount of azithromycin to control the processing and quality of solid formulations with reduced cost and short analysis time.

  2. Characterization of Organosolv Lignins using Thermal and FT-IR Spectroscopic Analysis

    Science.gov (United States)

    Rhea J. Sammons; David P. Harper; Nicole Labbe; Joseph J. Bozell; Thomas Elder; Timothy G. Rials

    2013-01-01

    A group of biomass-derived lignins isolated using organosolv fractionation was characterized by FT-IR spectral and thermal property analysis coupled with multivariate analysis. The principal component analysis indicated that there were significant variations between the hardwood, softwood, and grass lignins due to the differences in syringyl and guaiacyl units as well...

  3. FT-IR spectroscopic studies of tin-modified rhenium alumina-silica metathesis catalyst

    International Nuclear Information System (INIS)

    Zawadzki, J.; Skupinski, W.; Kirszensztejn, P.; Wachowski, L.; Jamroz, M.H.; Dobrowolski, J.Cz.

    2000-01-01

    FT-IR spectra of the products obtained in each step of the tetramethyltin (TMT)/3-wt.% Re 2 O 7 /Al 2 O 3 -SiO 2 and TMT/Al 2 O 3 -SiO 2 system preparation are presented and discussed. The obtained spectra show that TMT reacts with alumina-silica hydroxyl groups already at room temperature, yielding surface methyltin compounds; NH 4 ReO 4 reacts with alumina-silica surface at temperatures up to 423 K, yielding rhenium surface species and ammonia, which is strongly bonded by acidic sites of the Broensted kind. FT-IR spectrum of the system (TMT)/3-wt.% Re 2 O 7 /Al 2 O 3 -SiO 2 indicated the absence of surface methyl tin compounds observed on the surface system TMT/Al 2 O 3 -SiO 2 , and the presence of physically adsorbed TMT; after 5 h of evacuation of the TMT/3-wt.% Re 2 O 7 /Al 2 O 3 -SiO 2 system, the FT-IR spectrum indicated the presence of only a single band at 2977 cm -1 , which may be assigned to the C-H bond stretching of the methyl group in the surface bridged (O,O')Re(=O) 2 CH 3 complexes formed. Analysis of FT-IR results suggests formation of a new phase containing rhenium and aluminium ions, on which olefin sites active in olefin metathesis are formed in the system studied. (author)

  4. Utility Assessment Report for SPIDERS Phase 2: Ft. Carson (Rev 1.0)

    Energy Technology Data Exchange (ETDEWEB)

    Barr, Jonathan L. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Tuffner, Francis K. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Hadley, Mark D. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Schneider, Kevin P. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2014-01-01

    This document contains the Utility Assessment Report (UAR) for the Phase 2 operational Demonstration (OD) of the Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) Joint Capability Technology Demonstration (JCTD). The UAR for Phase 2 shows that the SPIDERS system was able to meet the requirements of the Implementation Directive at Ft. Carson.

  5. Non-trivial frames for f(T) theories of gravity and beyond

    International Nuclear Information System (INIS)

    Ferraro, Rafael; Fiorini, Franco

    2011-01-01

    Some conceptual issues concerning f(T) theories - a family of modified gravity theories based on absolute parallelism - are analyzed. Due to the lack of local Lorentz invariance, the autoparallel frames satisfying the field equations are evasive to an a priori physical understanding. We exemplify this point by working out the vierbein (tetrad) fields for closed and open Friedmann-Robertson-Walker cosmologies.

  6. 1064nm FT-Raman spectroscopy for investigations of plant cell walls and other biomass materials

    Science.gov (United States)

    Umesh P. Agarwal

    2014-01-01

    Raman spectroscopy with its various special techniques and methods has been applied to study plant biomass for about 30 years. Such investigations have been performed at both macro- and micro-levels. However, with the availability of the Near Infrared (NIR) (1064 nm) Fourier Transform (FT)-Raman instruments where, in most materials, successful fluorescence suppression...

  7. Perfect fluid and F(T) gravity descriptions of inflationary universe and comparison with observational data

    Science.gov (United States)

    Ganiou, M. G.; Houndjo, M. J. S.; Salako, Ines G.; Rodrigues, M. E.; Tossa, J.

    2016-07-01

    We describe in this paper the observables of inflationary models, in particular the spectrum index of torsion scalar perturbations, the tensor-to-scalar ratio, and the running of the spectral index, in the framework of perfect fluid models and F(T) gravity theories through the reconstruction methods. Then, our results on the perfect fluid and F(T) gravity theories of inflation are compared with recent cosmological observations such as the Planck satellite and BICEP2 experiment. Our studies prove that the perfect fluid and F(T) gravity models can reproduce the inflationary Universe consistent above all with the Planck data. We have reconstructed several models and considered others which give the best fit values compatible with the spectral index of curvature perturbations, the tensor-to-scalar ratio, and the running of the spectral index within the allowed ranges suggested by the Planck and BICEP2 results. By taking the trace-anomaly into consideration, we have shown that the reconstructed models F(T) can not describe a finite de Sitter inflation without an additional constant n that we related to cosmological constant.

  8. Evaluation of Fungal Deterioration in Liquidambar orientalis Mill. heartwood by FT-IR and light microscopy.

    Science.gov (United States)

    Nural Yilgor; Dilek Dogu; Roderquita Moore; Evren Terzi; S. Nami Kartal

    2013-01-01

    The chemical and morphological changes in heartwood specimens of Liquidambar orientalis Mill. caused by the white-rot fungus Trametes versicolor and the brown-rot fungi Tyromyces palustris and Gloeophyllum trabeum were studied by wet chemistry, FT-IR, GC-MS analyses, and photo-...

  9. IDENTIFICATION OF BIS(2-CHLOROETHYL) ETHER HYDROLYSIS PRODUCTS BY DIRECT AQUEOUS INJECTION GC/FT-IR

    Science.gov (United States)

    Gas chromatography coupled to Fourier-transform infrared spectroscopy (GC/FT-IR) is rapidly becoming an accepted analytical technique complementary to GC/mass spectroscopy for identifying organic compounds in mixtures at low to moderate concentrations. irect aqueous injection (DA...

  10. Antioxidant activity and FT-IR analysis of Datura innoxia and Datura ...

    African Journals Online (AJOL)

    Materials and Methods: Determination of total phenolic content and total flavonoid content and antioxidant activity in terms of total antioxidant assay, ABTS assay, DPPH assay and in-vitro lipid peroxidation inhibiting activity were determined along with the FT-IR (Fourier transform infrared spectroscopy) analysis of the ...

  11. FT-IR and Raman vibrational microspectroscopies used for spectral biodiagnosis of human tissues

    OpenAIRE

    Lin, Shan-Yang; Li, Mei-Jane; Cheng, Wen-Ting

    2007-01-01

    Fourier transform infrared (FT-IR) and Raman vibrational microspectroscopies used for biomedical diagnosis of human tissues are reviewed from basic principle to biological applications. The advantages and disadvantages of both vibrational microspectroscopies are compared to highlight their efficiency and adaptability for noninvasively investigating the chemical compositions of ultrastructual human tissues at different disease states. Biochemical fingerprints applied to the biological samples ...

  12. High Speed Countercurrent Chromatography/Fourier Transform Infrared (HSCCC/FT-IR) Spectrometry

    Science.gov (United States)

    Romanach, Rodolfo J.; de Haseth, James A.

    1985-12-01

    High Speed Countercurrent Chromatography/Fourier transform infrared (HSCCC/FT-IR) spectrometry is present-ed. High solute-to-solvent ratios can be obtained in separations performed using HSCCC. At these high solute concentrations it is possible to obtain spectra of solutes without solvent elimination, even in the presence of polar solvents, such as water and methanol.

  13. Determination of ethylenic residues in wood and TMP of spruce by FT-Raman spectroscopy

    Science.gov (United States)

    Umesh P. Agarwal; Sally A. Ralph

    2008-01-01

    A method based on FT-Raman spectroscopy is proposed for determining in situ concentrations of ethylenic residues in softwood lignin. Raman contributions at 1133 and 1654 cm-1, representing coniferaldehyde and coniferyl alcohol structures, respectively, were used in quantifying these units in spruce wood with subsequent conversion to concentrations in lignin. For...

  14. Advanced sampling techniques for hand-held FT-IR instrumentation

    Science.gov (United States)

    Arnó, Josep; Frunzi, Michael; Weber, Chris; Levy, Dustin

    2013-05-01

    FT-IR spectroscopy is the technology of choice to identify solid and liquid phase unknown samples. The challenging ConOps in emergency response and military field applications require a significant redesign of the stationary FT-IR bench-top instruments typically used in laboratories. Specifically, field portable units require high levels of resistance against mechanical shock and chemical attack, ease of use in restrictive gear, extreme reliability, quick and easy interpretation of results, and reduced size. In the last 20 years, FT-IR instruments have been re-engineered to fit in small suitcases for field portable use and recently further miniaturized for handheld operation. This article introduces the HazMatID™ Elite, a FT-IR instrument designed to balance the portability advantages of a handheld device with the performance challenges associated with miniaturization. In this paper, special focus will be given to the HazMatID Elite's sampling interfaces optimized to collect and interrogate different types of samples: accumulated material using the on-board ATR press, dispersed powders using the ClearSampler™ tool, and the touch-to-sample sensor for direct liquid sampling. The application of the novel sample swipe accessory (ClearSampler) to collect material from surfaces will be discussed in some detail. The accessory was tested and evaluated for the detection of explosive residues before and after detonation. Experimental results derived from these investigations will be described in an effort to outline the advantages of this technology over existing sampling methods.

  15. Light-Induced Two-Dimensional FT-IR Spectroscopy of BacterioRhodopsin

    NARCIS (Netherlands)

    Kosters, P.G.H.; de Vries, A.H.B.; Kooyman, R.P.H.

    2000-01-01

    Two-dimensional Fourier transform infrared (2D FT-IR) spectroscopy was applied to study the slower states of the membrane protein bacterioRhodopsin (bR) photocycle, with bR adsorbed on a ZnSe attenuated total reflectance (ATR) crystal. The M and the N states of the bR photocycle could be

  16. Quantitative analysis of bucillamine and its pharmaceutical formulation using FT-IR spectroscopy.

    Science.gov (United States)

    Bunaciu, Andrei A; Aboul-Enein, Hassan Y; Fleschin, Serban

    2005-08-01

    A Fourier transform infrared (FT-IR) spectrometric method was developed for the rapid, direct measurement of bucillamine. Conventional KBr-spectra and DRIFTS spectra were compared for best determination of active substance in its tablet formulation. Two chemometric approaches, partial least squares (PLS) and principal component regression (PCR+) methods were used in data processing. Similar results were obtained with both chemometric methods.

  17. Sabrina Cauchy, Les bouquetières-chapelières en fleurs à Paris sous l’Ancien Régime

    Directory of Open Access Journals (Sweden)

    Sabrina Cauchy

    2008-07-01

    Full Text Available Une bouquetière est une femme qui « fait ou agence des bouquets de fleurs naturelles », telle est la définition donnée par Hurtaut et Magny dans le Dictionnaire historique de la ville de Parisau XVIIIe siècle. Profession existant dès le Moyen Age sous une autre forme, les chapelières de fleurs, c’est un métier entièrement féminin déjà ancien, bien que peu connu. Travaillant probablement pour les jardiniers, les bouquetières se sont constituées progressivement d’elles-mêmes en communauté disti...

  18. The Response Regulator ResD Plays a Role in Metabolism of Listeria monocytogenes

    DEFF Research Database (Denmark)

    Larsen, Marianne Halberg; Sørensen, Martine; Ingmer, Hanne

    to be transmitted to food processing plants from where it can establish and survive for extended periods of time contaminating processed food products. Recently we have identified the response regulator ResD of L. monocytogenes and showed that it is important for growth in laboratory media and for sugar uptake......Listeria monocytogenes is a serious food borne pathogenic bacterium that can cause listeriosis with high mortality rate. L. monocytogenes is commonly found in the environment particularly in association with decaying plant material.  From the environmental niche the bacterium is believed...... (Larsen et al., 2006). The aim of this study was to investigate in more detail the role of the response regulator ResD in metabolisme of Listeria monocytogenes EGD. The role of ResD was first  investigated by microarray analysis. This analysis resulted in identification of genes repressed under aerobic...

  19. Co-Compostagem de resíduos avícolas e de resíduos florestais : Um estudo na região de Viseu

    OpenAIRE

    Silva, Maria Elisabete Ferreira

    2003-01-01

    Dissertação apresentada para obtenção do grau de Mestre em Engenharia do Ambiente (ramo de Gestão e Tratamento de Resíduos Industriais), na Faculdade de Engenharia da Universidade do Porto, sob a orientação na FEUP da Profs. Doutora Olga Cristina Pastor Nunes e na Escola Superior de Tecnologia de Viseu do Prof. Doutor Luís Eugénio Teixeira de Lemos

  20. Determination of the HMX and RDX content in synthesized energetic material by HPLC, FT-MIR, and FT-NIR spectroscopies

    Directory of Open Access Journals (Sweden)

    Elizabeth C. Mattos

    2004-08-01

    Full Text Available A new method has been developed for determining the content of mixtures of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX, the HMX/RDX ratio, in explosive compositions by Fourier transform infrared spectroscopy (FT-IR, in the regions MIR (mid infrared and NIR (near infrared with reference values obtained by chromatographic analysis (HPLC. Plots of relative MIR (A917 / A783 or NIR absorbance values (A4412 / A4317 versus HMX/RDX ratio determined by HPLC analysis revealed good linear relationships.

  1. Revisiting support policies for RES-E adulthood: Towards market compatible schemes

    International Nuclear Information System (INIS)

    Huntington, Samuel C.; Rodilla, Pablo; Herrero, Ignacio; Batlle, Carlos

    2017-01-01

    The past two decades of growth in renewable energy sources of electricity (RES-E) have been largely driven by out-of-market support policies. These schemes were designed to drive deployment on the basis of specific subsidies sustained in time to allow for the larger costs as well as to limit investor risk. While these policies have proven to be effective, the way they have been designed to date has led to costly market distortions that are becoming more difficult to ignore as penetrations reach unpreceded levels. In the context of this growing concern, we provide a critical analysis of the design elements of RES-E support schemes, focusing on how they affect this trade-off between promoting and efficiently integrating RES-E. The emphasis is on the structure of the incentive payment, which in the end turns to be the cornerstone for an efficient integration. We conclude that, while needed, a well-designed and further developed capacity-based support mechanism complemented with ex-post compensations defined for reference benchmark plants, such as the mechanism currently implemented in Spain, is an alternative with good properties if the major goal is truly market integration. The approach is robust to future developments in technology cost, performance and market penetration of RES-E. - Highlights: • Market distortions due to RES support mechanisms are becoming difficult to ignore. • This paper provides a critical analysis of the design elements of RES support schemes. • The emphasis is on the structure of the incentive, key for an efficient integration. • We argue in favor of a further developed capacity-based support mechanism. • The incentive should be combined with the design of a set of reference plants.

  2. Energy and climate hand-in-hand: Financing RES-E support with carbon revenues

    International Nuclear Information System (INIS)

    Verde, Stefano F.; Pazienza, Maria Grazia

    2016-01-01

    In Italy, the cost of support for renewable electricity (RES-E) is largely recovered through the “A3 surcharge”, which weighs heavily on electricity bills. Using household survey data, we show the A3 surcharge is markedly regressive. Carbon taxation in the non-ETS sector is envisaged as a means to reduce CO 2 emissions cost-effectively and generate revenue to lower the A3 surcharge. A non-ETS carbon tax would be less regressive than the A3 surcharge and its cost would be more evenly distributed across households. We calculate the revenue of a €20/tCO 2 non-ETS carbon tax would have allowed a cut in the A3 surcharge of about 68% in 2011, and 39% in 2012. The impact of the carbon tax plus the reduced A3 surcharge would have been less regressive, but the cost higher for most households. The restrictions imposed in the simulations mean the results are only appropriate to render first-round effects of the reform. Policy relevance: In the vast majority of the EU Member States, the cost of RES-E support is largely paid by electricity consumers, most often through specific surcharges. Rising electricity prices are a common concern given the implications for competitiveness and equity. The Member States facing this issue could conveniently address it through environmental tax reforms consistent with the Climate and Energy Package. Replacing RES-E surcharges with carbon taxes in the non-ETS sector would permit cost-effective reduction of CO 2 emissions while allocating the cost of RES-E support more equitably. The difference in regressivity would stem from the different consumption patterns of home fuels (including electricity) and motor fuels across income distribution. A cross-country comparison of energy household budget shares proves the structural nature of this difference between home fuels and motor fuels. Moreover, the notion that electricity consumers should pay for RES-E support is questioned on the grounds that electricity is a basic necessity good and RES

  3. Gerenciamento de resíduos industriais em Pernambuco : viabilidade técnica e ambiental

    OpenAIRE

    Costa Gadêlha, Marivan

    2005-01-01

    Este trabalho focaliza o tema Gerenciamento de Resíduos Industriais: Viabilidade Técnica e Ambiental, a partir de uma análise crítica da aplicabilidade prática, de toda a legislação ambiental, principalmente a nível federal e estadual, relacionada à coleta seletiva, triagem e destinação final dos resíduos industriais no âmbito do estado de Pernambuco. Para tanto, é considerado e analisado o histórico da evolução das preocupações ambientais da atividade industrial a nível global...

  4. Diversité floristique, structure et dynamique des jachères post ...

    African Journals Online (AJOL)

    Les jachères post-culturales sont une composante fondamentale des paysages agraires en Côte d'Ivoire. La succession secondaire post-culturale a été étudiée le long d'une chronoséquence de 31 jachères incluses dans une matrice de forêt dense semi-décidue (forêt de Bamo, Côte d'Ivoire). Après analyse de la flore ...

  5. FT-IR, FT-Raman and UV spectral investigation: computed frequency estimation analysis and electronic structure calculations on chlorobenzene using HF and DFT.

    Science.gov (United States)

    Govindarajan, M; Karabacak, M; Udayakumar, V; Periandy, S

    2012-03-01

    In this work, the vibrational spectral analysis was carried out by using FT-Raman and FT-IR spectroscopy in the range 100-4000 cm(-1) and 400-4000 cm(-1) respectively, for the title molecule. The molecular structure, fundamental vibrational frequencies and intensity of the vibrational bands are interpreted with the aid of structure optimizations and normal coordinate force field calculations based on Hartree Fock (HF) and density functional theory (DFT) method and different basis sets combination. The complete vibrational assignments of wavenumbers were made on the basis of potential energy distribution (PED). The scaled B3LYP/6-311++G(d,p) results show the best agreement with the experimental values over the other methods. The effects due to the substitution of halogen bond were investigated. The results of the calculations were applied to simulated spectra of the title compound, which show excellent agreement with observed spectra. The energy and oscillator strength calculated by Time-Dependent Density Functional Theory (TD-DFT) results complements with the experimental findings. Besides, frontier molecular orbitals (FMO), molecular electrostatic potential (MEP), and thermodynamic properties were performed. The thermodynamic properties of the title compound at different temperatures have been calculated, revealing the correlations between heat capacity (C), entropy (S), and enthalpy changes (H) and temperatures. Copyright © 2011 Elsevier B.V. All rights reserved.

  6. Quantum chemical calculation (electronic and topologic) and experimental (FT-IR, FT-Raman and UV) analysis of isonicotinic acid N-oxide.

    Science.gov (United States)

    Karaca, Caglar; Atac, Ahmet; Karabacak, Mehmet

    2015-04-05

    In this work, the molecular conformation, vibrational and electronic analysis of isonicotinic acid N-oxide (iso-NANO) were presented in the ground state using experimental techniques (FT-IR, FT-Raman and UV) and density functional theory (DFT) employing B3LYP exchange correlation with the 6-311++G(d,p) basis set. The geometry optimization and energies associated possible two conformers (Rot-I and Rot-II) were computed. The vibrational spectra were calculated and fundamental vibrations were assigned on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanics (SQM) method and PQS program. The obtained structures were analyzed with the Atoms in Molecules (AIMs) methodology. The computational results diagnose the most stable conformer of iso-NANO as the Rot-I form. Total density of state (TDOS) and partial density of state (PDOS) and also overlap population density of state (OPDOS) diagrams analysis for the most stable conformer (Rot-I) were calculated using the same method. Thermodynamic properties (heat capacity, entropy and enthalpy) of the title compound at different temperatures were calculated. As a result, the optimized geometry and calculated spectroscopic data show a good agreement with the experimental results. Copyright © 2014 Elsevier B.V. All rights reserved.

  7. FT-IR, FT-Raman and UV spectral investigation: computed frequency estimation analysis and electronic structure calculations on 1-bromo-2-methylnaphthalene.

    Science.gov (United States)

    Govindarajan, M; Karabacak, M

    2013-01-15

    In this work, the vibrational spectral analysis was carried out by using FT-Raman and FT-IR spectroscopy in the range 100-4000 cm(-1) and 400-4000 cm(-1) respectively, for 1-bromo-2-methylnaphthalene (C11H9Br) molecule. The molecular structure, fundamental vibrational frequencies and intensity of the vibrational bands are interpreted with the aid of structure optimizations and normal coordinate force field calculations based density functional theory (DFT) and ab initio HF methods with different basis sets combinations. The complete vibrational assignments of wavenumbers were made on the basis of potential energy distribution (PED). The results of the calculations were applied to simulated vibrational spectra of the title compound, which show excellent agreement with observed spectra. The scaled B3LYP/6-311++G(d,p) results show the best agreement with the experimental values over the other methods. The energy and oscillator strength calculated by Time-Dependent Density Functional Theory (TD-DFT) complements with the experimental findings. In addition, molecular electrostatic potential and nonlinear optical and thermodynamic properties of the title compound were performed. Mulliken charges and NBOs of the title molecule were also calculated and interpreted. Copyright © 2012 Elsevier B.V. All rights reserved.

  8. Experimental and theoretical studies of (FT-IR, FT-Raman, UV-Visible and DFT) 4-(6-methoxynaphthalen-2-yl) butan-2-one.

    Science.gov (United States)

    Govindasamy, P; Gunasekaran, S

    2015-01-01

    In this work, the vibrational spectral analysis was carried out by using FT-Raman and FT-IR spectroscopy in the range 4000-50 cm(-1) and 4000-450 cm(-1) respectively for 4-(6-methoxynaphthalen-2-yl) butan-2-one (abbreviated as 4MNBO) molecule. Theoretical calculations were performed by density functional theory (DFT/B3LYP) method using 6-311G(d,p) and 6-311++G(d,p) basis sets. The difference between the observed and calculated wavenumber value of most of the fundamentals were very small. The complete vibrational assignments of wavenumbers were made on the basis of potential energy distribution (PED). The UV-Vis spectrum was recorded in the methanol solution. The energy, wavelength and oscillator's strength were calculated by Time Dependent Density Functional Theory (TD-DFT) and matched to the experimental findings. The intramolecular contacts have been interpreted using natural bond orbital (NBO) and natural localized molecular orbital (NLMO) analysis. Thermodynamic properties of 4MNBO at different temperature have been calculated. The molecular electrostatic potential surface (MESP) and Frontier molecular orbital's (FMO's) analysis were investigated using theoretical calculations. Copyright © 2015 Elsevier B.V. All rights reserved.

  9. Preparation and characterizations of SnO2 nanopowder and spectroscopic (FT-IR, FT-Raman, UV-Visible and NMR) analysis using HF and DFT calculations.

    Science.gov (United States)

    Ayeshamariam, A; Ramalingam, S; Bououdina, M; Jayachandran, M

    2014-01-24

    In this work, pure and singe phase SnO2 Nano powder is successfully prepared by simple sol-gel combustion route. The photo luminescence and XRD measurements are made and compared the geometrical parameters with calculated values. The FT-IR and FT-Raman spectra are recorded and the fundamental frequencies are assigned. The optimized parameters and the frequencies are calculated using HF and DFT (LSDA, B3LYP and B3PW91) theory in bulk phase of SnO2 and are compared with its Nano phase. The vibrational frequency pattern in nano phase gets realigned and the frequencies are shifted up to higher region of spectra when compared with bulk phase. The NMR and UV-Visible spectra are simulated and analyzed. Transmittance studies showed that the HOMO-LUMO band gap (Kubo gap) is reduced from 3.47 eV to 3.04 eV while it is heated up to 800°C. The Photoluminescence spectra of SnO2 powder showed a peak shift towards lower energy side with the change of Kubo gap from 3.73 eV to 3.229 eV for as-prepared and heated up to 800°C. Crown Copyright © 2013. Published by Elsevier B.V. All rights reserved.

  10. Molecular structure, vibrational analysis (FT-IR, FT-Raman), NMR, UV, NBO and HOMO-LUMO analysis of N,N-Diphenyl Formamide based on DFT calculations.

    Science.gov (United States)

    Mathammal, R; Monisha, N R; Yasaswini, S; Krishnakumar, V

    2015-03-15

    In this work, the vibrational spectral analysis is carried out by using Raman and infrared spectroscopy in the range 4000-400 cm(-1) and 4000-50 cm(-1) respectively for N,N-Diphenyl Formamide (DPF) molecule. The optimized molecular structures, vibrational frequencies and corresponding vibrational assignments, nuclear magnetic resonance (NMR) and ultraviolet-visible (UV-VIS) spectra of the title molecule are evaluated using density functional theory (DFT) with standard B3LYP/6-31G(d,p) basis set. The harmonic vibrational frequencies are calculated and the scaled values have been compared with experimental FT-IR and FT-Raman spectra. The observed and calculated frequencies are found to be in good agreement. The stability of the molecule arising from hyper conjugative interactions and the charge delocalization has been analyzed using natural bond (NBO) analysis. The possible electronic transitions are determined by HOMO-LUMO orbital shapes and their energies. Thermodynamic properties (heat capacity, entropy and enthalpy) and the first hyperpolarizability of the title compound are calculated. The Mulliken charges and electric dipole moment of the molecule are computed using DFT calculations. The (1)H and (13)C nuclear magnetic resonance (NMR) chemical shift of the molecules are calculated by the gauge independent atomic orbital (GIAO) method and compared with experimental results. Copyright © 2014 Elsevier B.V. All rights reserved.

  11. Molecular vibrational investigation [FT-IR, FT-Raman, UV-Visible and NMR] on Bis(thiourea) Nickel chloride using HF and DFT calculations.

    Science.gov (United States)

    Anand, S; Sundararajan, R S; Ramachandraraja, C; Ramalingam, S; Durga, R

    2015-03-05

    In the present research work, the FT-IR, FT-Raman spectra of the Bis(thiourea) Nickel chloride (BTNC) were recorded and analyzed. The observed fundamental frequencies in finger print and functional group regions were assigned according to their uniqueness region. The computational calculations were carried out by HF and DFT (B3LYP and B3PW91) methods with 6-31++G(d,p) and 6-311++G(d,p) basis sets and the corresponding results were tabulated. The present organo-metallic compound was made up of covalent and coordination covalent bonds. The modified vibrational pattern of the complex molecule associated with ligand group was analyzed. Furthermore, the (13)C NMR and (1)H NMR spectral data were calculated by using the gauge independent atomic orbital (GIAO) method with B3LYP/6-311++G(d,p) basis set and their spectra were simulated and the chemical shifts linked to TMS were compared. A investigation on the electronic and optical properties; absorption wavelengths, excitation energy, dipole moment and frontier molecular orbital energies were carried out. The kubo gap of the present compound was calculated related to HOMO and LUMO energies which confirm the occurring of charge transformation between the base and ligand. Besides frontier molecular orbitals (FMO), molecular electrostatic potential (MEP) was performed. The NLO properties related to Polarizability and hyperpolarizability based on the finite-field approach were also discussed. Crown Copyright © 2014. Published by Elsevier B.V. All rights reserved.

  12. Molecular vibrational investigation [FT-IR, FT-Raman, UV-Visible and NMR] on Bis(thiourea) Nickel chloride using HF and DFT calculations

    Science.gov (United States)

    Anand, S.; Sundararajan, R. S.; Ramachandraraja, C.; Ramalingam, S.; Durga, R.

    2015-03-01

    In the present research work, the FT-IR, FT-Raman spectra of the Bis(thiourea) Nickel chloride (BTNC) were recorded and analyzed. The observed fundamental frequencies in finger print and functional group regions were assigned according to their uniqueness region. The computational calculations were carried out by HF and DFT (B3LYP and B3PW91) methods with 6-31++G(d,p) and 6-311++G(d,p) basis sets and the corresponding results were tabulated. The present organo-metallic compound was made up of covalent and coordination covalent bonds. The modified vibrational pattern of the complex molecule associated with ligand group was analyzed. Furthermore, the 13C NMR and 1H NMR spectral data were calculated by using the gauge independent atomic orbital (GIAO) method with B3LYP/6-311++G(d,p) basis set and their spectra were simulated and the chemical shifts linked to TMS were compared. A investigation on the electronic and optical properties; absorption wavelengths, excitation energy, dipole moment and frontier molecular orbital energies were carried out. The kubo gap of the present compound was calculated related to HOMO and LUMO energies which confirm the occurring of charge transformation between the base and ligand. Besides frontier molecular orbitals (FMO), molecular electrostatic potential (MEP) was performed. The NLO properties related to Polarizability and hyperpolarizability based on the finite-field approach were also discussed.

  13. Spectroscopic [FT-IR and FT-Raman] and theoretical [UV-Visible and NMR] analysis on α-Methylstyrene by DFT calculations

    Science.gov (United States)

    Karthikeyan, N.; Joseph Prince, J.; Ramalingam, S.; Periandy, S.

    2015-05-01

    In the present research work, the FT-IR, FT-Raman and 13C and 1H NMR spectra of the α-Methylstyrene were recorded. The observed fundamental frequencies in finger print as well as functional group regions were assigned according to their uniqueness region. The Gaussian computational calculations are carried out by HF and DFT (B3LYP and B3PW91) methods with 6-31++G(d,p) and 6-311++G(d,p) basis sets and the corresponding results were tabulated. The impact of the presence of vinyl group in phenyl structure of the compound is investigated. The modified vibrational pattern of the molecule associated vinyl group was analyzed. Moreover, 13C NMR and 1H NMR were calculated by using the gauge independent atomic orbital (GIAO) method with B3LYP methods and the 6-311++G(d,p) basis set and their spectra were simulated and the chemical shifts linked to TMS were compared. A study on the electronic and optical properties; absorption wavelengths, excitation energy, dipole moment and frontier molecular orbital energies were carried out. The kubo gap of the present compound was calculated related to HOMO and LUMO energies which confirm the occurring of charge transformation between the base and ligand. Besides frontier molecular orbitals (FMO), molecular electrostatic potential (MEP) was performed. The NLO properties related to Polarizability and hyperpolarizability based on the finite-field approach were also discussed.

  14. Quantum chemical determination of molecular geometries, interpretation of FT-IR, FT-Raman spectra and charge transfer properties for N-(2-cyanoethyl)-N-methylaniline.

    Science.gov (United States)

    Revathi, B; Nataraj, A; Balachandran, V

    2014-04-24

    FT-Raman and FT-IR spectra were recorded for N-(2-cyanoethyl)-N-methylaniline sample in solid state. The equilibrium geometries, harmonic vibrational frequencies, infrared and Raman scattering activities were computed using DFT method. Results obtained at this level of theory were used for a detailed interpretation of the infrared and Raman spectra, based on the potential energy distribution (PED) of the normal modes. Molecular parameters such as bond length, and bond angle were calculated with the same method. The intra-molecular charge transfer was calculated by means of natural bond orbital analysis (NBO). Hyperconjugative interaction energy was more during the π-π(*) transition. Energy gap of the molecule was found using HOMO and LUMO calculation, hence the less band gap, which seems to be more stable. Atomic charges of various atoms of title molecule and other thermo-dynamical parameters were calculated using same levels of calculation. The correlation equations between heat capacity, entropy, Gibb's free energies changes with temperatures were fitted by quadratic formula. UV-VIS spectral analyses of title molecule have been researched by theoretical calculations. In order to understand electronic transitions of the compound, TD-DFT calculations on electronic absorption spectra in gas phase and solvent were performed. The calculated frontier orbital energies, absorption wavelengths (λ), oscillator strengths (f) and excitation energies (E) for gas phase in different solvent are also illustrated. Crown Copyright © 2013. Published by Elsevier B.V. All rights reserved.

  15. Combined experimental and quantum chemical studies on spectroscopic (FT-IR, FT-Raman, UV-Vis, and NMR) and structural characteristics of quinoline-5-carboxaldehyde

    Science.gov (United States)

    Kumru, Mustafa; Altun, Ahmet; Kocademir, Mustafa; Küçük, Vesile; Bardakçı, Tayyibe; Şaşmaz, İbrahim

    2016-12-01

    Comparative experimental and theoretical studies have been performed on the structure and spectral (FT-IR, FT-Raman, UV-Vis and NMR) features of quinoline-5-carboxaldehyde. Quantum chemical calculations have been carried out at Hartree-Fock and density functional B3LYP levels with the triple-zeta 6-311++G** basis set. Two stable conformers of quinoline-5-carboxaldehyde arising from the orientation of the carboxaldehyde moiety have been located at the room temperature. The energetic separation of these conformers is as small as 2.5 kcal/mol with a low transition barrier (around 9 kcal/mol). Therefore, these conformers are expected to coexist at the room temperature. Several molecular characteristics of quinoline-5-carboxaldehyde obtained through B3LYP and time-dependent B3LYP calculations, such as conformational stability, key geometry parameters, vibrational frequencies, IR and Raman intensities, UV-Vis vertical excitation energies and the corresponding oscillator strengths have been analyzed. The 1H and 13C NMR chemical shifts of quinoline-5-carboxaldehyde were also investigated.

  16. Acid-base properties, FT-IR, FT-Raman spectroscopy and computational study of 1-(pyrid-4-yl)piperazine.

    Science.gov (United States)

    Mary, Y Sheena; Panicker, C Yohannan; Varghese, Hema Tresa; Van Alsenoy, Christian; Procházková, Markéta; Sevčík, Richard; Pazdera, Pavel

    2014-01-01

    We report the vibrational spectral analysis was carried out using FT-IR and FT-Raman spectroscopy for 1-(pyrid-4-yl)piperazine (PyPi). Single crystals of PyPi suitable for X-ray structural analysis were obtained. The acid-base properties are also reported. PyPi supported on a weak acid cation-exchanger in the single protonated form and this system can be used efficiently as the solid supported analogue of 4-N,N-dimethyl-aminopyridine. The complete vibrational assignments of wavenumbers were made on the basis of potential energy distribution. The HOMO and LUMO analysis is used to determine the charge transfer within the molecule and with the molecular electrostatic potential map was applied for the reactivity assessment of PyPi molecule toward proton, electrophiles and nucleopholes as well. The stability of the molecule arising from hyper-conjugative interaction and charge delocalization has been analyzed using NBO analysis. The calculated first hyperpolarizability of PyPi is 17.46 times that of urea. Copyright © 2013 Elsevier B.V. All rights reserved.

  17. Determination of alkaloids in capsules, milk and ethanolic extracts of poppy (Papaver somniferum L.) by ATR-FT-IR and FT-Raman spectroscopy.

    Science.gov (United States)

    Schulz, Hartwig; Baranska, Malgorzata; Quilitzsch, Rolf; Schütze, Wolfgang

    2004-10-01

    Fourier transform (FT) infrared spectroscopy using a diamond composite ATR crystal and NIR-FT-Raman spectroscopy techniques were applied for the simultaneous identification and quantification of the most important alkaloids in poppy capsules. Most of the characteristic Raman signals of the alkaloids can be identified in poppy milk isolated from unripe capsules. But also poppy extracts present specific bands relating clearly to the alkaloid fraction. Raman spectra obtained by excitation with a Nd:YAG laser at 1064 nm show no disturbing fluorescence effects; therefore the plant tissue can be recorded without any special preparation. The used diamond ATR technique allows to measure very small sample amounts (5-10 microL or 2-5 mg) without the necessity to perform time-consuming pre-treatments. When applying cluster analysis a reliable discrimination of "low-alkaloid" and "high-alkaloid" poppy single-plants can be easily achieved. The examples presented in this study provide clear evidence of the benefits of Raman and ATR-IR spectroscopy in efficient quality control, forensic analysis and high-throughput evaluation of poppy breeding material.

  18. Quantum mechanical, spectroscopic studies (FT-IR, FT-Raman, NMR, UV) and normal coordinates analysis on 3-([2-(diaminomethyleneamino) thiazol-4-yl] methylthio)-N'-sulfamoylpropanimidamide

    Science.gov (United States)

    Muthu, S.; Uma Maheswari, J.; Sundius, Tom

    2013-05-01

    Famotidine (3-([2-(diaminomethyleneamino) thiazol-4-yl] methylthio)-N'-sulfamoylpropanimidamide) is a histamine H2-receptor antagonist that inhibits stomach acid production, and it is commonly used in the treatment of peptic ulcer disease (PUD) and gastroesophageal reflux disease (GERD/GORD). Quantum chemical calculations of the equilibrium geometry of famotidine in the ground state were carried out using density functional theory (DFT/B3LYP) with the 6-311G(d,p) basis set. In addition, harmonic vibrational frequencies, infrared intensities and Raman activities were calculated at the same level of theory. A detailed interpretation of the infrared and Raman spectrum of the drug is also reported. Theoretical simulations of the FT-IR, and FT-Raman spectra of the title compound have been calculated. Good correlations between the experimental 1H and 13C NMR chemical shifts and calculated GIAO shielding tensors were found. The results of the energy and oscillator strength calculations by time-dependent density functional theory (TD-DFT) supplement the experimental findings. Total and partial density of state (TDOS and PDOS) and also overlap population density of state (COOP or OPDOS) diagrams analysis were presented. The dipole moment, linear polarizability and first order hyperpolarizability values were also computed. The linear polarizability and first order hyperpolarizabilities of the studied molecule indicate that the compound is a good candidate for nonlinear optical materials.

  19. FT-IR, FT-Raman, UV/Vis spectra and fluorescence imaging studies on 2-(bromoacetyl)benzo(b)furan by ab initio DFT calculations.

    Science.gov (United States)

    Veeraiah, A

    2015-08-05

    The vibrational and electronic properties of 2-(bromoacetyl)benzo(b)furan have been studied in the ground state using experimental techniques (FT-IR, FT-Raman and UV) and density functional theory (DFT) employing B3LYP exchange correlation with the 6-31G(d,p) basis set. The theoretically calculated optimized parameters, vibrational frequencies etc., were compared with the experimental values, which yield good agreement between the observed and calculated values. The complete assignments of fundamental modes were performed on the basis of the potential energy distribution (PED). UV-visible spectrum of the compound was recorded in the region 300-600 nm and compared with the theoretical spectrum obtained from SAC-CI calculations. A good agreement is observed between the experimental and theoretical spectra. Fluorescence microscopic imaging studies proved that the compound can be used as one of the potential light sources in the yellow region with suitable excitation. Further, the predicted electronic transitions between the MOs 47→64, 52→62, 56→65, 56→72, 56→77 of the compound show a strong line at 569.8 nm. Copyright © 2015 Elsevier B.V. All rights reserved.

  20. The spectroscopic (FT-IR, FT-Raman, UV and NMR) first order hyperpolarizability and HOMO-LUMO analysis of dansyl chloride.

    Science.gov (United States)

    Karabacak, M; Cinar, M; Kurt, M; Poiyamozhi, A; Sundaraganesan, N

    2014-01-03

    The solid phase FT-IR and FT-Raman spectra of dansyl chloride (DC) have been recorded in the regions 400-4000 and 50-4000 cm(-1), respectively. The spectra have been interpreted in terms of fundamentals modes, combination and overtone bands. The structure of the molecule has been optimized and the structural characteristics have been determined by density functional theory (B3LYP) method with 6-311++G(d,p) as basis set. The vibrational frequencies were calculated for most stable conformer and were compared with the experimental frequencies, which yield good agreement between observed and calculated frequencies. The infrared and Raman spectra have also been predicted from the calculated intensities. (1)H and (13)CNMR spectra were recorded and (1)H and (13)C nuclear magnetic resonance chemical shifts of the molecule were calculated using the gauge independent atomic orbital (GIAO) method. UV-Visible spectrum of the compound was recorded in the region 200-600 nm and the electronic properties HOMO and LUMO energies were measured by time-dependent TD-DFT approach. Nonlinear optical and thermodynamic properties were interpreted. All the calculated results were compared with the available experimental data of the title molecule. Copyright © 2013 Elsevier B.V. All rights reserved.

  1. Quantum mechanical, spectroscopic studies (FT-IR, FT-Raman, NMR, UV) and normal coordinates analysis on 3-([2-(diaminomethyleneamino) thiazol-4-yl] methylthio)-N'-sulfamoylpropanimidamide.

    Science.gov (United States)

    Muthu, S; Uma Maheswari, J; Sundius, Tom

    2013-05-01

    Famotidine (3-([2-(diaminomethyleneamino) thiazol-4-yl] methylthio)-N'-sulfamoylpropanimidamide) is a histamine H2-receptor antagonist that inhibits stomach acid production, and it is commonly used in the treatment of peptic ulcer disease (PUD) and gastroesophageal reflux disease (GERD/GORD). Quantum chemical calculations of the equilibrium geometry of famotidine in the ground state were carried out using density functional theory (DFT/B3LYP) with the 6-311G(d,p) basis set. In addition, harmonic vibrational frequencies, infrared intensities and Raman activities were calculated at the same level of theory. A detailed interpretation of the infrared and Raman spectrum of the drug is also reported. Theoretical simulations of the FT-IR, and FT-Raman spectra of the title compound have been calculated. Good correlations between the experimental (1)H and (13)C NMR chemical shifts and calculated GIAO shielding tensors were found. The results of the energy and oscillator strength calculations by time-dependent density functional theory (TD-DFT) supplement the experimental findings. Total and partial density of state (TDOS and PDOS) and also overlap population density of state (COOP or OPDOS) diagrams analysis were presented. The dipole moment, linear polarizability and first order hyperpolarizability values were also computed. The linear polarizability and first order hyperpolarizabilities of the studied molecule indicate that the compound is a good candidate for nonlinear optical materials. Copyright © 2013 Elsevier B.V. All rights reserved.

  2. FT-IR and FT-Raman, NMR and UV spectroscopic investigation and hybrid computational (HF and DFT) analysis on the molecular structure of mesitylene.

    Science.gov (United States)

    Kose, E; Atac, A; Karabacak, M; Nagabalasubramanian, P B; Asiri, A M; Periandy, S

    2013-12-01

    The spectroscopic properties of mesitylene were investigated by FT-IR, FT-Raman, UV, (1)H and (13)C NMR techniques. The geometrical parameters and energies have been obtained from density functional theory (DFT) B3LYP method and Hartree-Fock (HF) method with 6-311++G(d,p) and 6-311G(d,p) basis sets calculations. The geometry of the molecule was fully optimized, vibrational spectra were calculated and fundamental vibrations were assigned on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanics (SQM) method and PQS program. Total and partial density of state (TDOS and PDOS) and also overlap population density of state (OPDOS) diagrams analysis were presented. (13)C and (1)H NMR chemical shifts were calculated by using the gauge-invariant atomic orbital (GIAO) method. The electronic properties, such as excitation energies, oscillator strength, wavelengths, HOMO and LUMO energies, were performed by time-dependent density functional theory (TD-DFT) results complements with the experimental findings. The results of the calculations were applied to simulate spectra of the title compound, which show excellent agreement with observed spectra. Besides, frontier molecular orbitals (FMO), molecular electrostatic potential (MEP) and thermodynamic properties were performed. Reduced density gradient (RDG) of the mesitylene was also given to investigate interactions of the molecule. Copyright © 2013 Elsevier B.V. All rights reserved.

  3. FT-IR, FT-Raman and UV spectroscopic investigation, electronic properties, electric moments, and NBO analysis of anethole using quantum chemical calculations.

    Science.gov (United States)

    Sinha, L; Prasad, O; Chand, S; Sachan, A K; Pathak, S K; Shukla, V K; Karabacak, M; Asiri, A M

    2014-12-10

    FT-IR and FT-Raman spectra of anethole (1-Methoxy-4-(1-propenyl)benzene), a flavoring agent of commercial value, have been recorded in the regions 4000-400 and 4000-100cm(-1) respectively. The structure of the title molecule has been optimized and the structural parameters have been calculated by DFT/B3LYP method with 6-311++G(d,p) basis set. The fundamental vibrational wavenumbers as well as their intensities were calculated and a good agreement between observed and scaled calculated wavenumbers has been achieved. UV-Vis spectrum of the title compound was recorded in the region 200-500nm and the electronic properties such as HOMO and LUMO energies and associated energy gap were calculated by Time dependent-density functional theory (TD-DFT) approach. Nonlinear optical (NLO) study divulges the nonlinear properties of the molecule. Stability of the title molecule arising from hyper-conjugative interactions and charge delocalization has been investigated using natural bond orbital (NBO) analysis. The theoretical results were found to be in coherence with the measured experimental data. Copyright © 2014 Elsevier B.V. All rights reserved.

  4. Gestão de resíduos sólidos em restaurante escola

    Directory of Open Access Journals (Sweden)

    Bianca Peruchin

    2013-01-01

    Full Text Available Um dos maiores problemas ambientais da atualidade é a excessiva geração de resíduos e a sua destinação final ambientalmente adequada. As Instituições de Ensino Superior (IES são importantes fontes geradoras devido à diversidade de atividades de ensino, pesquisa e extensão realizadas no seu âmbito. Os Restaurantes Escola (RE atendem à comunidade acadêmica dos campi universitários, e caracterizam-se por produzir resíduos similares aos domésticos, mas em maior quantidade. Este estudo foi realizado com o objetivo de investigar a composição gravimétrica dos resíduos produzidos em um RE de uma IES localizada no sul do país, bem como conhecer a situação atual do gerenciamento dos resíduos. Os dados foram obtidos através da caracterização dos resíduos do RE durante cinco dias, de entrevista com os gestores responsáveis pelo estabelecimento e da observação direta no local. Averiguou-se a inexistência de um Plano de Gerenciamento dos Resíduos Sólidos no RE, bem como a ausência de práticas efetivas relacionadas ao manejo destes. A segregação dos resíduos é prejudicada devido à falta de lixeiras específicas e a sobrecarga dos funcionários quanto às atividades desempenhadas. Ao longo do período experimental foram caracterizados 547,068 Kg de resíduos, dos quais mais de 80% corresponderam à matéria orgânica. Conclui-se que o montante de resíduo orgânico gerado pode ser destinado à compostagem. Recomenda-se a implantação de uma infraestrutura adequada para o manejo dos resíduos, que pode ser feita através da elaboração e aplicação de um plano de gestão integrada dos resíduos sólidos no RE.Abstract Nowadays, the amount of waste generated and its proper final destination is one of the greatest environmental issues. Higher education institutions are an important source of waste due to the diversity of teaching, researching and extension activities performed in their facilities. The university

  5. WEREWOLF, a regulator of root hair pattern formation, controls flowering time through the regulation of FT mRNA stability.

    Science.gov (United States)

    Seo, Eunjoo; Yu, Jihyeon; Ryu, Kook Hui; Lee, Myeong Min; Lee, Ilha

    2011-08-01

    A key floral activator, FT, integrates stimuli from long-day, vernalization, and autonomous pathways and triggers flowering by directly regulating floral meristem identity genes in Arabidopsis (Arabidopsis thaliana). Since a small amount of FT transcript is sufficient for flowering, the FT level is strictly regulated by diverse genes. In this study, we show that WEREWOLF (WER), a MYB transcription factor regulating root hair pattern, is another regulator of FT. The mutant wer flowers late in long days but normal in short days and shows a weak sensitivity to vernalization, which indicates that WER controls flowering time through the photoperiod pathway. The expression and double mutant analyses showed that WER modulates FT transcript level independent of CONSTANS and FLOWERING LOCUS C. The histological analysis of WER shows that it is expressed in the epidermis of leaves, where FT is not expressed. Consistently, WER regulates not the transcription but the stability of FT mRNA. Our results reveal a novel regulatory mechanism of FT that is non cell autonomous.

  6. Characterization of two PEBP genes, SrFT and SrMFT, in thermogenic skunk cabbage (Symplocarpus renifolius).

    Science.gov (United States)

    Ito-Inaba, Yasuko; Masuko-Suzuki, Hiromi; Maekawa, Haruhiko; Watanabe, Masao; Inaba, Takehito

    2016-07-08

    Floral thermogenesis has been found in dozens of primitive seed plants and the reproductive organs in these plants produce heat during anthesis. Thus, characterization of the molecular mechanisms underlying flowering is required to fully understand the role of thermogenesis, but this aspect of thermogenic plant development is largely unknown. In this study, extensive database searches and cloning experiments suggest that thermogenic skunk cabbage (Symplocarpus renifolius), which is a member of the family Araceae, possesses two genes encoding phosphatidyl ethanolamine-binding proteins (PEBP), FLOWERING LOCUS T (SrFT) and MOTHER OF FT AND TFL1 (SrMFT). Functional analyses of SrFT and SrMFT in Arabidopsis indicate that SrFT promotes flowering, whereas SrMFT does not. In S. renifolius, the stage- and tissue-specific expression of SrFT was more evident than that of SrMFT. SrFT was highly expressed in flowers and leaves and was mainly localized in fibrovascular tissues. In addition, microarray analysis revealed that, within floral tissues, SrFT was co-regulated with the genes associated with cellular respiration and mitochondrial function, including ALTERNATIVE OXIDASE gene proposed to play a major role in floral thermogenesis. Taken together, these data suggest that, among the PEBP genes, SrFT plays a role in flowering and floral development in the thermogenic skunk cabbage.

  7. Collaborative Student Laboratory Exercise Using FT-IR Spectroscopy for the Kinetics Study of a Biotin Analogue

    Science.gov (United States)

    Leong, Jhaque; Ackroyd, Nathan C.; Ho, Karen

    2014-01-01

    The synthesis of N-methoxycarbonyl-2-imidazolidone, an analogue of biotin, was conducted by organic chemistry students and confirmed using FT-IR and H NMR. Spectroscopy students used FT-IR to measure the rate of hydrolysis of the product and determined the rate constant for the reaction using the integrated rate law. From the magnitude of the rate…

  8. Tilapia by-product meal in rations for Nile tilapia (Oreochromis niloticus fingerlings/ Farinha de resíduos da filetagem de tilápia em rações para alevinos de tilápia do Nilo (Oreochromis niloticus

    Directory of Open Access Journals (Sweden)

    Adilson Reidel

    2005-06-01

    Full Text Available Objectifying to evaluate the inclusion of tilapia processing residues (FT in the feeding of Nile tilapia (Oreochromis niloticus fingerlings, 125 Nile tilapia fingerlings (with average initial weight of 0.72±0.19g were distributed in a completely randomized design with five treatments and five repetitions in 25 aquariums (30L. The rations were formulated to contain 0, 5, 10, 15% of FT and 0% FT plus methionine (0+met. Isoproteics, isocalcitics, isophosphorics and isoenergetics diets were used. After 28 days of experiment, final weight (PF, weight gain (GP, feed conversion ratio (CA and survival (SO, were evaluated. No differences were observed (P>0.05 for the studied parameters. It was concluded that the FT can be used up to 15% in substitution to the soybean meal in the diet of nile tilapia fingerlings.Objetivando avaliar a inclusão de farinha de resíduos da filetagem de tilápias (FT na alimentação de alevinos de tilápia do Nilo (Oreochromis niloticus, foram utilizados 125 alevinos de tilápia do Nilo com peso inicial médio de 0,72±0,19g, distribuídos em um delineamento inteiramente casualizado com cinco tratamentos e cinco repetições, em 25 aquários (30L cada. As rações foram formuladas de forma a conterem 0, 5, 10, 15% de FT e 0% de FT mais metionina (0+met, sendo as mesmas isoenergéticas isoprotéicas, isocalcíticas e isofosfóricas. Após 28 dias de experimento foram avaliados as médias de peso final (PF, ganho de peso (GP, conversão alimentar aparente (CA e sobrevivência (SO. Não foram observadas diferenças (P>0,05 entre os parâmetros avaliados. Conclui-se que a FT pode ser utilizada em até 15% em substituição ao farelo de soja em rações para alevinos de tilápia sem causar prejuízo ao seu desempenho.

  9. Quantificação dos resíduos potencialmente infectantes presentes nos resíduos sólidos urbanos da regional sul de Belo Horizonte, Minas Gerais, Brasil

    OpenAIRE

    Cussiol,Noil Amorim de Menezes; Rocha,Gustavo Henrique Tetzl; Lange,Liséte Celina

    2006-01-01

    O objetivo da pesquisa foi o de conhecer a parcela de resíduos potencialmente infectantes ­ aqueles contendo fezes, urina, sangue e fluidos corpóreos ­ de origem domiciliar, presentes nos resíduos sólidos urbanos. Em agosto e setembro de 2002, os resíduos da região Sul de Belo Horizonte foram coletados e levados ao Centro de Tratamento e Disposição Final de Resíduos Sólidos da BR 040, para segregação e quantificação. Os "perfurocortantes" contribuíram com 0,02±0,02% dos resíduo...

  10. Over-expression of an FT-homologous gene of apple induces early flowering in annual and perennial plants.

    Science.gov (United States)

    Tränkner, Conny; Lehmann, Sandra; Hoenicka, Hans; Hanke, Magda-Viola; Fladung, Matthias; Lenhardt, Denise; Dunemann, Frank; Gau, Achim; Schlangen, Karin; Malnoy, Mickael; Flachowsky, Henryk

    2010-11-01

    The protein encoded by the FLOWERING LOCUS T (FT) gene from Arabidopsis thaliana seems to be the long-searched florigen, and over-expression of FT orthologues resulted in accelerated flower development in annual and perennial plants. In the present study, we isolated two allelic mRNA sequences of an FT-homologous gene from apple, which was designated as MdFT1. Using a SSR motif this gene was mapped on LG 12 of apple. Over-expression of MdFT1 in Arabidopsis and the commercially important tree species poplar and apple itself using the CaMV 35S or the Arabidopsis Suc2 promoter resulted in significant accelerated flowering compared with wild-type plants. Transgenic T(0) plants of Arabidopsis flowered 4-6 days on average earlier than wild-type Arabidopsis under LD conditions. Under short-day conditions Suc2::MdFT1 plants of the T(1)-generation flowered after 66 ± 18 days, while wild-type plants flowered about 22 days later. All transgenic Arabidopsis plants showed a normal habit except for the early flowering phenotype. Early flowering was detected 6-10 months after transformation in transgenic polar clones containing MdFT1 driven by the CaMV 35S, whereas plants of the transgenic apple clone T780 set up its first flowers during in vitro cultivation. Based on our results we conclude that MdFT1 is responsible for inducing flowering and that the function of the apple FT1 gene is conserved in annual herbaceous species as well as perennial woody species. Furthermore, we discuss the role of MdFT1 in flower development with regard to the findings of genetic studies on apple.

  11. Res Publica alustas Tallinnas koostööd Keskerakonnaga / Siim Männik

    Index Scriptorium Estoniae

    Männik, Siim

    2005-01-01

    Ilmunud ka: Vabariik (venek.) 18. apr. lk. 2. Koalitsioonivahetusest Tallinnas. Linnavolikogu Res Publica fraktsiooni esimehe Andres Korgi, linnapea Tõnis Paltsi nõuniku Jaano Martin Otsa kommentaare. Tallinna linnapea hinnangul on sügisel koalitsiooni asudes seatud eesmärgid praeguseks peaaegu saavutatud

  12. Res Publica murrab läbi / Urmo Kübar

    Index Scriptorium Estoniae

    Kübar, Urmo, 1978-

    2004-01-01

    Ilmunud ka: Võta Võim : na russkom jazõke, 28. apr. 2004, lk. 1. 18. aprillil 2004 Tallinnas toimunud Res Publica valimiskonverentsist, kus kinnitati programm ja kandidaadid Euroopa Parlamendi valimisteks. Esinesid Urmas Reinsalu ja Juhan Parts. Vt. samas: Kust tuli 'Murrame läbi'?

  13. Aplikace práva ES národními soudy a res judicata

    Czech Academy of Sciences Publication Activity Database

    Šejvl, Michal

    2008-01-01

    Roč. 147, č. 7 (2008), s. 713-737 ISSN 0231-6625 R&D Projects: GA ČR GA407/06/1467 Institutional research plan: CEZ:AV0Z70680506 Keywords : EC law * Application of EC law * Res judicata * National procedural autonomy Subject RIV: AG - Legal Sciences

  14. Modèles de gestion des ressources forestières du massif ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Expérimentation Participative et Adaptative de Modèles de Gestion des Ressources Forestières dans la Chaine Montagneuse de l'Atlas (Algérie, Maroc, Tunisie) : rapport final (17 mars 2009 au 18 septembre 2012). Download PDF. Reports. Unité de transformation de cire d'abeille (Commune de M'Sara). Download PDF ...

  15. Carotenoides totais em resíduos do camarão Litopenaeus vannamei

    Directory of Open Access Journals (Sweden)

    Larissa Mont'Alverne Jucá Seabra

    2014-02-01

    Full Text Available Considerando-se o possível aproveitamento dos resíduos, provenientes do beneficiamento do camarão, realizouse, neste trabalho, a determinação da concentração de carotenoides totais dos resíduos do camarão Litopenaeus vannamei e da farinha obtida após secagem. As análises foram realizadas nos resíduos in natura e na farinha recémprocessada (dia 0 e aos 60, 120 e 180 dias de armazenamento sob congelamento. Os resíduos frescos apresentaram, no dia 0, teores de 42,74 µg/g de carotenoides totais e, a farinha recém-processada, de 98,51 µg/g. Após 180 dias de armazenamento, sob congelamento, os teores de carotenoides totais diminuíram significativamente, quando comparados com os do dia 0 (p < 0,05.

  16. Res Publica lubas vene koolihariduse jätku / Agnes Kuus

    Index Scriptorium Estoniae

    Kuus, Agnes

    2004-01-01

    Ilmunud ka: Infopress, 1. okt. 2004, nr. 40, lk. 23. Eestis saab venekeelset haridust ka pärast 2007. aastat, kui venekeelsed gümnaasiumid peaksid alustama üleminekut eesti keelele, lubas Res Publica oma laupäevasel üldkogul vastuvõetud resolutsioonis

  17. Hyperemesis gravidarum avec troubles ioniques sévères: à propos ...

    African Journals Online (AJOL)

    aménorrhée non traité et vu tardivement avec des troubles ioniques sévères associés à des répercussions cliniques dans un contexte de cytolyse, de cholestase et d'insuffisance rénale aigue. Ce cas a bien répondu au traitement médical.

  18. Influence de la rotation culturale avec apport de matières ...

    African Journals Online (AJOL)

    Influence de la rotation culturale avec apport de matières organiques exogènes et d'une fertilisation minérale sur les nématodes phytoparasites en culture du sorgho au Centre Ouest du Burkina Faso.

  19. Proposta de um desenho da cadeia reversa para resíduos eletroeletrônicos

    Directory of Open Access Journals (Sweden)

    Reinaldo Alves de Sá Ferreira Júnior

    2016-12-01

    Full Text Available Com o crescimento da demanda dos equipamentos eletroeletrônicos e de sua rápida obsolescência, gera-se grande volume de resíduos, os quais possuem metais pesados altamente tóxicos, como o mercúrio, cobre, chumbo, arsênio, entre outros. A implantação da Logística Reversa (LR tem sido uma forma de gestão de grande sucesso, tanto no contexto internacional como nacional, e aliada a Politica Nacional de Resíduos Sólidos (PNRS tornou-se uma forma mais eficaz para o gerenciamento desses resíduos. Este artigo teve como objetivo, a partir da revisão na literatura referente à LR, PNRS e REEE apresentar atores, atribuições e processos associados, propondo, desta forma, uma estrutura geral para a cadeia de suprimentos reversa de pós-consumo associada aos REEE. A principal contribuição do artigo é proposição de um desenho da cadeia reversa para resíduos Eletroeletrônicos.

  20. Médecins Sans Frontières moves to protect refugee healthcare

    African Journals Online (AJOL)

    As Médecins Sans Frontières (MSF) spurned all European Union (EU) fund ing for its projects worldwide after a series of cynical EUcountry moves to choke inward refugee flow, South African. (SA) activists in Johannesburg this June protes ted the proposed stiffening of local refugee laws. The People's Coalition Against ...

  1. Etude de la Relation entre l'abondance des grands mammifères ...

    African Journals Online (AJOL)

    ... grands mammifères frugivores et celle des fruits dans le Parc National de Moukalaba-Doudou, Gabon. Fred Loïque Mindonga Nguelet, Christophe Roland Zinga Koumba, Jacques François Mavoungou, Ephrem Nzengue, Etienne François Akomo-Okoue, Yoshihiro Nakashima, Shun Hongo, Ghislain Wilfried Ebang Ella, ...

  2. Miks ma Res Publicast ära ei lähe / Siiri Sisask

    Index Scriptorium Estoniae

    Sisask, Siiri, 1968-

    2005-01-01

    Ilmunud ka: Hiiu Leht 13. september lk. 2, Lääne Elu 13. september lk. 2, Meie Maa 13 september lk. 2, Koit 13 september lk. 6, Valgamaalane 15. september lk. 2, Vali Uudised 16. september lk. 2. Parlamendiliige Siiri Sisask tõstab esile Res Publica saavutused

  3. Profil des métaux lourds contenus dans les plantes vivrières ...

    African Journals Online (AJOL)

    Conclusion et application des résultats: Les plantes Manihot esculenta (Sombe); Amaranthus (Lengalenga); et Psidium guajava L. (Mapela) se trouvant aux alentours des zones minières de la province du Katanga, renferment les métaux lourds. Dans la plupart des cas, ces métaux sont au delà des seuils normaux. Ce qui ...

  4. Res Publica nõuab rea võimulubaduste täitmist / Rasmus Kagge

    Index Scriptorium Estoniae

    Kagge, Rasmus, 1977-

    2005-01-01

    Res Publica lubas koalitsioonipartneritele mitte minna koalitsioonileppe kallale, kui nad toetavad toppama jäänud lubaduste täitmist - haridusreformi, presidendi otsevalimiste seadustamist, riigikontrollile ka omavalitsuste kontrollimiseks õiguse andmist ja lapsevanema tulumaksuvaba miinimumi kahekordistamist alates pere teisest lapsest. Lisa: Võimuliitlaste soovid

  5. Res Publica soovib riigikogulaste kuluhüvitiste korra muutmist / Siim-Valmar Kiisler ; interv. Kalle Muuli

    Index Scriptorium Estoniae

    Kiisler, Siim, 1965-

    2003-01-01

    Res Publica saadikud teevad Riigikogu juhatusele ettepaneku muuta kuluhüvitiste korda, teatas intervjuus Res Publica saadikurühma esimees Siim-Valmar Kiisler. Kommenteerivad: Jaanus Männik, Toomas Varek. Vt. samas: Riigikogu liikmete vastuseid küsimustele tööga seotud kulude kohta: Robert Lepikson, Reet Roos, Janno Reiljan

  6. Experience of the Canary Islands in the development of insular 100% RES systems and micro-grids

    Energy Technology Data Exchange (ETDEWEB)

    Piernavieja, Gonzalo; Suarez, Salvador; Henriquez, Daniel [Instituto Tecnologico de Canarias (Canary Islands Institute of Technology - ITC), Las Palmas, Gran Canaria (Spain). RandD Div.

    2010-07-01

    Given the mentioned circumstances, conventional energy planning in the Canary Islands is a very complex task. The Regional Energy Plan PECAN (2007-2015) tries to correct the existing critical situation setting, among others, the ambitious goal of >25% electricity from RES (mostly wind) for 2015. In parallel to this conventional energy planning, outstanding initiatives in the distributed generation field are underway. ITC vision is that the Canarian Archipelago, given its particular characteristics (insular systems of different sizes, abundant RES potential -different sources-, important natural and biodiversity heritage, etc.), are a laboratory for testing and demonstrating new energy technologies in real conditions, as well as their commercial implementation. These new technologies include energy storage (particularly for excess RES that cannot be absorbed by the grids), development of 100% energy self- sufficiency models (with exclusive use of RES) and micro-/minigrids with high RES penetration and RES forecasting, including advanced ICTs and sustainable mobility concepts (e.g. V2G technologies). Given the high conventional generation costs and the relatively low RES costs (wind electricity production cost is less than 0.03 Euro/kWh), the Canary Islands could in the short term achieve grid parity, and in this sense pioneer the change to a RES based energy system. Models tested on the islands could be exported or extrapolated to our islands, regions of developing countries and even other regions in continental Europe. (orig.)

  7. Thermal properties of tannin extracted from Anacardium occidentale L. using TGA and FT-IR spectroscopy.

    Science.gov (United States)

    Viswanath, Vinod; Leo, Vincent Vineeth; Prabha, S Sabna; Prabhakumari, C; Potty, V P; Jisha, M S

    2016-01-01

    The chemical nature of the polyphenols of cashew kernel testa has been determined. Testa contains tannins, which present large molecular complexity and has an ancient use as tanning agents. The use of tannins extracted from cashew testa, considered in many places as a waste, grants an extra value to the cashew. In this work we have analysed through high performance liquid chromatography, infrared spectroscopy (FT-IR) and thermo gravimetric analysis the average molecular weight, main functional groups and thermal properties of tannins extracted from Anacardium occidentale L. The results of these analyses are compared with the commercial grade tannic acid. The FT-IR spectra showed bands characteristic of C = C, C-C and OH bonds. This important bioactive compound present in the cashew nut kernel testa was suggested as an interesting economical source of antioxidants for use in the food and nutraceutical industry.

  8. FINAL DESIGN REVIEW REPORT Subcritical Experiments Gen 2, 3-ft Confinement Vessel Weldment

    Energy Technology Data Exchange (ETDEWEB)

    Romero, Christopher [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-09-28

    A Final Design Review (FDR) of the Subcritical Experiments (SCE) Gen 2, 3-ft. Confinement Vessel Weldment was held at Los Alamos National Laboratory (LANL) on September 14, 2017. The review was a focused review on changes only to the confinement vessel weldment (versus a system design review). The changes resulted from lessons-learned in fabricating and inspecting the current set of confinement vessels used for the SCE Program. The baseline 3-ft. confinement vessel weldment design has successfully been used (to date) for three (3) high explosive (HE) over-tests, two (2) fragment tests, and five (5) integral HE experiments. The design team applied lessons learned from fabrication and inspection of these vessel weldments to enhance fit-up, weldability, inspection, and fitness for service evaluations. The review team consisted of five (5) independent subject matter experts with engineering design, analysis, testing, fabrication, and inspection experience. The

  9. Signal-to-noise ratio of FT-IR CO gas spectra

    DEFF Research Database (Denmark)

    Bak, J.; Clausen, Sønnik

    1999-01-01

    in emission and transmission spectrometry, an investigation of the SNR in CO gas spectra as a function of spectral resolution has been carried out. We present a method to (1) determine experimentally the SNR at constant throughput, (2) determine the SNR on the basis of measured noise levels and Hitran......The minimum amount of a gaseous compound which can be detected and quantified with Fourier transform infrared (FT-IR) spectrometers depends on the signal-to-noise ratio (SNR) of the measured gas spectra. In order to use low-resolution FT-IR spectrometers to measure combustion gases like CO and CO2...... simulated signals, and (3) determine the SNR of CO from high to low spectral resolutions related to the molecular linewidth and vibrational-rotational lines spacing. In addition, SNR values representing different spectral resolutions but scaled to equal measurement times were compared. It was found...

  10. Characterization of human ovarian teratoma hair by using AFM, FT-IR, and Raman spectroscopy.

    Science.gov (United States)

    Kim, Kyung Sook; Lee, Jinwoo; Jung, Min-Hyung; Choi, Young Joon; Park, Hun-Kuk

    2011-12-01

    The structural, physical, and chemical properties of hair taken from an ovarian teratoma (teratoma hair) was first examined by atomic force microscopy (AFM), Fourier transform infrared (FT-IR), and Raman spectroscopy. The similarities and differences between the teratoma hair and scalp hair were also investigated. Teratoma hair showed a similar morphology and chemical composition to scalp hair. Teratoma hair was covered with a cuticle in the same manner as scalp hair and showed the same amide bonding modes as scalp hair according to FT-IR and Raman spectroscopy. On the other hand, teratoma hair showed different physical properties and cysteic acid bands from scalp hair: the surface was rougher and the adhesive force was lower than the scalp hair. The cystine oxides modes did not change with the position unlike scalp hair. These differences can be understood by environmental effects not by the intrinsic properties of the teratoma hair. Copyright © 2011 Wiley Periodicals, Inc.

  11. Study of the Pyrrol/Diphenylamine Copolymer by FT-IR spectroscopy and conductivity

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Perez

    2004-01-01

    Full Text Available The main goal of this study was to analyze the physical properties of the copolymer formed by the electrochemical deposition of the polydiphenylamine (PDPA on polypyrrole (Ppy and Ppy on PDPA, in different conditions, through the characterization of the materials formed by the resonant Raman, FT-IR and conductivity techniques. The interactions among the species which are present in the new copolymer structure and the changes in electronic conductivity, were verified. The copolymer was also synthesized electrochemically in the presence of iodide species and the material was characterized by FT-IR spectroscopy and conductivity. The role of the dopant was studied in the process of charge transfer between the copolymer-dopant, acting in the stabilization of the species in the polymer backbone and the increase of the electronic conductivity.

  12. Application of Printed Circuit Board Technology to FT-ICR MS Analyzer Cell Construction and Prototyping

    Energy Technology Data Exchange (ETDEWEB)

    Leach, Franklin E.; Norheim, Randolph V.; Anderson, Gordon A.; Pasa-Tolic, Ljiljana

    2014-12-01

    Although Fourier transform ion cyclotron resonance mass spectrometry (FT-ICRMS) remains themass spectrometry platform that provides the highest levels of performance for mass accuracy and resolving power, there is room for improvement in analyzer cell design as the ideal quadrupolar trapping potential has yet to be generated for a broadband MS experiment. To this end, analyzer cell designs have improved since the field’s inception, yet few research groups participate in this area because of the high cost of instrumentation efforts. As a step towards reducing this barrier to participation and allowing for more designs to be physically tested, we introduce a method of FT-ICR analyzer cell prototyping utilizing printed circuit boards at modest vacuum conditions. This method allows for inexpensive devices to be readily fabricated and tested over short intervals and should open the field to laboratories lacking or unable to access high performance machine shop facilities because of the required financial investment.

  13. S. Afr. J, Anim. Sci 4, 55-60(1974) EVIDENCE FOR A FT ...

    African Journals Online (AJOL)

    Sci 4, 55-60(1974). EVIDENCE FOR A FT,JNCTIONAL ROLE OF THE PINEAL IN BOVINES. M.lf{.M. llryes, B.K. Knight and R.B. Symington. RreiptofnSr.e.T3. Deprtment of Amtomy, Univasity of Rhodesh, &lisbury, Rhodesia. ONOIIIMING;. BEWYSE VIR 'N .FI,,NKSIONELE ROL VAN DIE EPIFISE TN DIE BEES. Dat die epifisc ...

  14. Oversampling Selective Accumulation Trapped Ion Mobility Spectrometry Coupled to FT-ICR MS: Fundamentals and Applications.

    Science.gov (United States)

    Benigni, Paolo; Fernandez-Lima, Francisco

    2016-07-19

    In the present paper, we describe the fundamentals and analytical advantages of Oversampling Selective Accumulation Trapped Ion Mobility Spectrometry (OSA-TIMS) when coupled to ultrahigh resolution mass analyzers (e.g., FT-ICR MS). During TIMS analysis, ion packages are spatially resolved based on their mobilities along the TIMS analyzer axis and multiple strategies can be utilized during the trapping and elution of the ion population of interest. In the case of OSA-TIMS-FT-ICR MS, the TIMS operation sequence, trapping conditions, and operations are optimized to increase the signal-to-noise and the number of points across the mobility domain, which leads to more accurate mobility and mass measurements. Experimental results show that accurate ion-neutral collision cross sections (analytical advantages of OSA-TIMS over SA-TIMS were illustrated for the analysis of structural peptide isomers (SDGRG and GRGDS [M + H](+)), conformational isomers (AT-hook peptide 3 KRGRGRPRK [M + 2H](+2)), and a complex mixture of polyaromatic hydrocarbons (PAH) from coal tar. Baseline separation of the structural peptide isomers SDGRG and GRGDS, [M + H](+), was observed, and three conformations were identified for the AT-hook peptide 3 KRGRGRPRK [M + 2H](+2) during OSA-TIMS-FT-ICR MS. A 2-fold increase in the number of molecular features and a 2-6-fold signal-to-noise increase was observed for OSA-TIMS when compared with SA-TIMS during the PAH analysis. This work provides the proof-of-principle for further application of OSA-TIMS-FT-ICR MS for the unsupervised analysis of complex mixtures based on the characterization of the conformational space and the assignment of chemical formulas in a single analysis.

  15. Local Lorentz transformation and exact spherically symmetric vacuum solutions in f(T) gravity theories

    Energy Technology Data Exchange (ETDEWEB)

    Nashed, Gamal G.L. [The British University in Egypt, Centre for Theoretical Physics, P.O. Box 43, Sherouk City (Egypt); Ain Shams University, Mathematics Department, Faculty of Science, Cairo (Egypt)

    2013-04-15

    In this paper a non-diagonal, spherically symmetric, tetrad field that contains an arbitrary function, S(r), which corresponds to a local Lorentz transformation, is applied to the field equations of f(T) gravity theories. Analytic vacuum solutions with integration constants are derived. These constants are studied by calculating the total conserved charge associated with each solution. The study shows that the obtained solutions represent the Schwarzschild-Ads spacetime. (orig.)

  16. Estimation of Organic and Elemental Carbon using FT-IR absorbance spectra from PTFE Filters

    OpenAIRE

    Reggente, Matteo; Dillner, Ann; Takahama, Satoshi

    2015-01-01

    Organic carbon and elemental carbon are major components of atmospheric PM. Typically they are measured using destructive and relatively expensive methods (e.g., TOR). We aim to reduce the operating costs of large air quality monitoring networks using FT-IR spectra of ambient PTFE filters and PLS regression. We achieve accurate predictions for models (calibrated in 2011) that use samples collected at the same or different sites of the calibration data set and in a different year (2013).

  17. Investigating mixing and segregation using discrete element modelling (DEM) in the Freeman FT4 rheometer.

    Science.gov (United States)

    Yan, Zilin; Wilkinson, Sam K; Stitt, Edmund H; Marigo, Michele

    2016-11-20

    Mixing and segregation in a Freeman FT4 powder rheometer, using binary mixtures with varied particle size ratio and volume fraction, were studied using the Discrete Element Method (DEM). As the blade moves within the particle bed, size induced segregations can occur via a sifting mechanism. A larger particle size ratio and/or a larger volume fraction of large particles lead to a quicker segregation process. A higher particle velocity magnitude can promote the segregation process and the rate for the segregation index increases in the radial direction: from the centre towards the outer layer. In the current DEM simulations, it is shown that the change in flow energy associated with segregation and mixing depends on the choice of frictional input parameters. FT4 is proposed as a potential tool to compare and rank the segregation tendency for particulate materials with distinct differences in flow energy of each component. This is achieved by measuring the flow energy gradient after a number of test cycles for mixing powders with different flow properties. Employing the FT4 dynamic powder characterisation can be advantageous to establish blending performances in an industrial context. Copyright © 2016 Elsevier B.V. All rights reserved.

  18. Non-destructive prediction of 'Hass' avocado dry matter via FT-NIR spectroscopy.

    Science.gov (United States)

    Wedding, Brett B; White, Ronald D; Grauf, Steve; Wright, Carole; Tilse, Bonnie; Hofman, Peter; Gadek, Paul A

    2011-01-30

    The inability to consistently guarantee internal quality of horticulture produce is of major importance to the primary producer, marketers and ultimately the consumer. Currently, commercial avocado maturity estimation is based on the destructive assessment of percentage dry matter (%DM), and sometimes percentage oil, both of which are highly correlated with maturity. In this study the utility of Fourier transform (FT) near-infrared spectroscopy (NIRS) was investigated for the first time as a non-invasive technique for estimating %DM of whole intact 'Hass' avocado fruit. Partial least squares regression models were developed from the diffuse reflectance spectra to predict %DM, taking into account effects of intra-seasonal variation and orchard conditions. It was found that combining three harvests (early, mid and late) from a single farm in the major production district of central Queensland yielded a predictive model for %DM with a coefficient of determination for the validation set of 0.76 and a root mean square error of prediction of 1.53% for DM in the range 19.4-34.2%. The results of the study indicate the potential of FT-NIRS in diffuse reflectance mode to non-invasively predict %DM of whole 'Hass' avocado fruit. When the FT-NIRS system was assessed on whole avocados, the results compared favourably against data from other NIRS systems identified in the literature that have been used in research applications on avocados. 2010 Society of Chemical Industry.

  19. Can f(T) gravity theories mimic ΛCDM cosmic history

    Energy Technology Data Exchange (ETDEWEB)

    Setare, M.R.; Mohammadipour, N., E-mail: rezakord@ipm.ir, E-mail: N.Mohammadipour@uok.ac.ir [Department of Science, University of Kurdistan, Sanandaj (Iran, Islamic Republic of)

    2013-01-01

    Recently the teleparallel Lagrangian density described by the torsion scalar T has been extended to a function of T. The f(T) modified teleparallel gravity has been proposed as the natural gravitational alternative for dark energy to explain the late time acceleration of the universe. In order to reconstruct the function f(T) by demanding a background ΛCDM cosmology we assume that, (i) the background cosmic history provided by the flat ΛCDM (the radiation ere with ω{sub eff} = (1/3), matter and de Sitter eras with ω{sub eff} = 0 and ω{sub eff} = −1, respectively) (ii) the radiation dominate in the radiation era with Ω{sub 0r} = 1 and the matter dominate during the matter phases when Ω{sub 0m} = 1. We find the cosmological dynamical system which can obey the ΛCDM cosmic history. In each era, we find a critical lines that, the radiation dominated and the matter dominated are one points of them in the radiation and matter phases, respectively. Also, we drive the cosmologically viability condition for these models. We investigate the stability condition with respect to the homogeneous scalar perturbations in each era and we obtain the stability conditions for the fixed points in each eras. Finally, we reconstruct the function f(T) which mimics cosmic expansion history.

  20. FY17 Accomplishments - Testing Facilities and Capabilities at SWiFT, SNL

    Energy Technology Data Exchange (ETDEWEB)

    Berg, Jonathan Charles [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-10-01

    The Scaled Wind Farm Technologies (SWiFT) facility operated by Sandia National Laboratories (SNL) has, in support of the Atmosphere to electrons (A2e) research program, acquired measurements of wind turbine wake dynamics under various atmospheric conditions and while interacting with a downstream wind turbine. SNL researchers, in collaboration with National Renewable Energy Laboratory (NREL) researchers, installed a customized LIDAR system created by the Technical University of Denmark (DTU) in one of the SWiFT wind turbines (Figure 1) and operated that turbine with intentional yaw-versus-winddirection misalignment to study the behavior of the turbine wake under numerous combinations of atmospheric conditions and turbine yaw offsets. The DTU-customized LIDAR provided detailed measurements of the wake’s shape and location at many distances downwind of the turbine (Figure 2). These measurements will benefit wind energy researchers looking to understand wind turbine wake behavior and improve modeling and simulation of wake dynamics, including the “wake steering” affect that is observed when turbine yaw offset is controlled. During the test campaign, two SWiFT wind turbines were operated at the same time to observe the influence of the turbines on each other as the wake of the upwind turbine was observed sweeping over and interacting with the downwind turbine.

  1. Monitoring wine aging with Fourier transform infrared spectroscopy (FT-IR

    Directory of Open Access Journals (Sweden)

    Basalekou Marianthi

    2015-01-01

    Full Text Available Oak wood has commonly been used in wine aging but recently other wood types such as Acacia and Chestnut, have attracted the interest of the researchers due to their possible positive contribution to wine quality. However, only the use of oak and chestnut woods is approved by the International Enological Codex of the International Organisation of Vine and Wine. In this study Fourier Transform (FT-mid-infrared spectroscopy combined with Discriminant Analysis was used to differentiate wines aged in barrels made from French oak, American oak, Acacia and Chestnut and in tanks with oak chips, over a period of 12 months. Two red (Mandilaria, Kotsifali and two white (Vilana, Dafni native Greek grape varieties where used to produce four wines. The Fourier Transform Infrared (FT-IR spectra of the samples were recorded on a Zinc Selenide (ZnSe window after incubation at 40 °C for 30 min. A complete differentiation of the samples according to both the type of wood used and the contact time was achieved based on their FT-IR spectra.

  2. An industrial FT-IR process gas analyzer for stack gas cems analysis

    Energy Technology Data Exchange (ETDEWEB)

    Welch, G.M. [American instruments, Anacortes, WA (United States); Herman, B.E. [Applied Automation/Hartmann & Braun, Bartlesville, OK (United States)

    1995-12-31

    This paper describes utilizing Fourier Transform Infrared (FT-IR) technology to meet and exceed EPA requirements to Continuously Monitor Carbon Monoxide (CO) and Sulfur Dioxide (SO){sub 2} in an oil refinery. The application consists of Continuous Emission Monitoring (CEMS) of two stacks from a Fluid Catalytic Cracking unit (FCCU). The discussion will follow the project from initial specifications, installation, start-up, certification results (RATA, 7 day drift), Cylinder Gas Audit (CGA) and the required maintenance. FT-IR is a powerful analytical tool suitable for measurement of stack component gases required to meet CEMS regulations, and allows simultaneous multi-component analysis of complex stack gas streams with a continuous sample stream flow through the measurement cell. The Michelson Interferometer in a unique {open_quotes}Wishbone{close_quotes} design and with a special alignment control enables standardized configuration of the analyzer for flue gas analysis. Normal stack gas pollutants: NO{sub x}, SO{sub 2}, and CO; as well as water soluble pollutants such as NH{sub 3} and HCI may be accurately determined and reported even in the presence of 0-31 Vol % water vapor concentrations (hot and wet). This FT-IR analyzer has been operating with EPA Certification in an oil refinery environment since September 1994.

  3. Electrospray ionization FT-ICR mass spectrometry of ARN naphthenic acids in crudes : preconcentration and quantification

    Energy Technology Data Exchange (ETDEWEB)

    Mapolelo, M.M.; Rodgers, R.P.; Marshall, A.G. [Florida State Univ., Tallahassee, FL (United States). Dept. of Chemistry and Biochemistry; Florida State Univ., Tallahassee, FL (United States). Cyclotron Resonance Program, National High Magnetic Field Laboratory

    2008-07-01

    The deposition of naphthenate solids and formation of sodium soaps in oil production equipment are known to create flow assurance problems for oilfield operators. Calcium naphthenate formation depends largely on tetraprotic naphthenic acids known as ARN acids in crude oil, whereas sodium naphthenates originate from less substituted lower molecular weight naphthenic acids. This study attempted to preconcentrate and quantify ARN-type acids in whole crude oils. Fourier transform ion cyclotron resonance (FT-ICR) mass spectroscopy (MS) provided detailed acidic speciation for all crudes and deposits analyzed. The preconcentration step involved bubbling ammonia into toluene-diluted crudes known to have ARN-type acids. ARN acids from the crystals increased from undetectable in the parent crude, to the most abundant acid species in the extract mass spectrum. A pure ARN acid standard was prepared for quantitation from successive cleaning and acid digestion of a naphthenate deposit. Analysis of the standard by negative-ion electrospray ionization (ESI) FT-ICR MS showed only ARN acid species. The paper described how API gravity, solvent systems and the paraffinic versus aromatic composition in the crude oil can influence crystal formation. Correlation of FT-ICR MS data of the respective crudes known to contain ARN acids naturally and crudes spiked with ARN acid standard were discussed and the significance of the preconcentration step was highlighted as a method to enhance the detection of ARN acids in crudes.

  4. New observational constraints on f(T) cosmology from radio quasars

    Energy Technology Data Exchange (ETDEWEB)

    Qi, Jing-Zhao; Cao, Shuo; Zhu, Zong-Hong [Beijing Normal University, Department of Astronomy, Beijing (China); Biesiada, Marek; Zheng, Xiaogang [Beijing Normal University, Department of Astronomy, Beijing (China); University of Silesia, Department of Astrophysics and Cosmology, Institute of Physics, Katowice (Poland)

    2017-08-15

    Using a new recently compiled milliarcsecond compact radio data set of 120 intermediate-luminosity quasars in the redshift range 0.46 < z < 2.76, whose statistical linear sizes show negligible dependence on redshifts and intrinsic luminosity and thus represent standard rulers in cosmology, we constrain three viable and most popular f(T) gravity models, where T is the torsion scalar in teleparallel gravity. Our analysis reveals that constraining power of the quasars data (N = 120) is comparable to the Union2.1 SN Ia data (N = 580) for all three f(T) models. Together with other standard ruler probes such as cosmic microwave background and baryon acoustic oscillation distance measurements, the present value of the matter density parameter Ω{sub m} obtained by quasars is much larger than that derived from other observations. For one of the models considered (f{sub 1}CDM) a small but noticeable deviation from ΛCDM cosmology is present, while in the framework of f{sub 3}CDM the effective equation of state may cross the phantom divide line at lower redshifts. These results indicate that intermediate-luminosity quasars could provide an effective observational probe comparable to SN Ia at much higher redshifts, and f(T) gravity is a reasonable candidate for the modified gravity theory. (orig.)

  5. Concepts for the assay of unbound thyroxine (FT4) and thyroxine binding globulin (TBG)

    International Nuclear Information System (INIS)

    Odstrchel, G.; Hertl, W.; Ward, F.B.; Travis, K.; Lindner, R.E.; Mason, R.D.

    1977-01-01

    Two new concepts for the assay of thyroid related substances are presented. One assay (FT 4 ) is based on a kinetic measurement of T 4 as it desorbs from binder proteins onto solid-phase T 4 antibody. This reaction can be described by a second order rate equation; r = k (IMA) (FT 4 ). The assay is rapid (2 hours) and gives good agreement (sigma = 0.92) with equilibrium dialysis and a normal range of 0.9 - 2.3 ng/dl. This assay uses a small sample size (25 μl) and is unaffected by drugs such as aspirin and dilantin. Pregnant and estrogen treated women gave normal FT 4 values. A new method for the measurement of functionally active TEG is also presented. In this case the labeled T 4 is partitioned between bovine serum albumin and the patient's samples. The complex is then removed from solution by solid-phase anti-TBG. A curve remiscent of an immunoradiometric assay is obtained. The assay has a sensitivity of 4 μg/ml and is unaffected by aspirin, dilantin or the patient's T 4 concentrations. Correlation with 'rocket' electrophoresis is 0.90. The normal range was 20 +- 7 μg/ml with pregnant women giving values greater than 30 μg/ml. Five hereditary deficient patients gave a value equivalent to zero TBG concentration. (orig.) [de

  6. Label-free differentiation of human pituitary adenomas by FT-IR spectroscopic imaging.

    Science.gov (United States)

    Steiner, Gerald; Mackenroth, Luisa; Geiger, Kathrin D; Stelling, Allison; Pinzer, Thomas; Uckermann, Ortrud; Sablinskas, Valdas; Schackert, Gabriele; Koch, Edmund; Kirsch, Matthias

    2012-05-01

    Fourier transform infrared (FT-IR) spectroscopic imaging has been used to characterize different types of pituitary gland tumors and normal pituitary tissue. Freshly resected tumor tissue from surgery was prepared as thin cryosections and examined by FT-IR spectroscopic imaging. Tissue types were discriminated via k-means cluster analysis and a supervised classification algorithm based on linear discriminant analysis. Spectral classification allowed us to discriminate between tumor and non-tumor cells, as well as between tumor cells that produce human growth hormone (hGH+) and tumor cells that do not produce that hormone (hGH-). The spectral classification was compared and contrasted with a histological PAS and orange G stained image. It was further shown that hGH+ pituitary tumor cells show stronger amide bands than tumor cells that do not produce hGH. This study demonstrates that FT-IR spectroscopic imaging can not only potentially serve as a fast and objective approach for discriminating pituitary gland tumors from normal tissue, but that it can also detect hGH-producing tumor cells.

  7. The spectroscopic (FT-IR, FT-Raman, dispersive Raman and NMR) study of ethyl-6-chloronicotinate molecule by combined density functional theory.

    Science.gov (United States)

    Karabacak, Mehmet; Calisir, Zuhre; Kurt, Mustafa; Kose, Etem; Atac, Ahmet

    2016-01-15

    In this study, ethyl-6-chloronicotinate (E-6-ClN) molecule is recorded in the region 4000-400 cm(-1) and 3500-100 cm(-1) (FT-IR, FT-Raman and dispersive Raman, respectively) in the solid phase. ((1))H and ((13))C nuclear magnetic resonance (NMR) spectra are recorded in DMSO solution. The structural and spectroscopic data of the molecule are obtained for two possible isomers (S1 and S2) from DFT (B3LYP) with 6-311++G(d,p) basis set calculations. The geometry of the molecule is fully optimized, vibrational spectra are calculated and fundamental vibrations are assigned on the basis of the potential energy distribution (PED) of the vibrational modes. ((1))H and ((13))C NMR chemical shifts are calculated by using the gauge-invariant atomic orbital (GIAO) method. The electronic properties, such as excitation energies, oscillator strengths, wavelengths, HOMO and LUMO energies, are performed by time-dependent density functional theory (TD-DFT). Total and partial density of state and overlap population density of state diagrams analysis are presented for E-6-ClN molecule. Furthermore, frontier molecular orbitals (FMO), molecular electrostatic potential, and thermodynamic features are performed. In addition to these, reduced density gradient of the molecule is performed and discussed. As a conclusion, the calculated results are compared with the experimental spectra of the title compound. The results of the calculations are applied to simulate the vibrational spectra of the molecule, which show excellent agreement with the observed ones. The theoretical and tentative results will give us a detailed description of the structural and physicochemical properties of the molecule. Natural bond orbital analysis is done to have more information stability of the molecule arising from charge delocalization, and to reveal the information regarding charge transfer within the molecules. Copyright © 2015 Elsevier B.V. All rights reserved.

  8. Molecular structure, vibrational spectroscopic (FT-IR, FT-Raman), UV and NBO analysis of 2-chlorobenzonitrile by density functional method.

    Science.gov (United States)

    Krishnan, Akhil R; Saleem, H; Subashchandrabose, S; Sundaraganesan, N; Sebastain, S

    2011-02-01

    In this work, we will report a combined experimental and theoretical study on molecular structure, vibrational spectra, NBO and UV spectral analysis of 2-chlorobenzonitrile (2-ClBN). The FT-IR solid phase (4000-400 cm(-1)), and FT-Raman spectra (3500-50 cm(-1)) of 2-ClBN was recorded. The molecular geometry, harmonic vibrational frequencies and bonding features of 2-ClBN in the ground state have been calculated by using the density functional methods (BLYP, B3LYP) with 6-31G(d,p) as basis set. The assignments of the vibrational spectra have been carried out with the help of normal co-ordinate analysis (NCA) following the Scaled Quantum Mechanical Force Field Methodology (SQMFF). Stability of the molecule arising from hyper conjugative interactions, charge delocalization has been analyzed using natural bond orbital (NBO) analysis. The results show that charge in electron density (ED) in the σ* and π* anti bonding orbitals and E2 energies confirms the occurrence of ICT (Intra molecular Charge Transfer) within the molecule. The UV spectrum was measured in ethanol solution. The energy and oscillator strength calculated by Time-Dependent Density Functional Theory (TD-DFT) results complements with the experimental findings. The calculated HOMO and LUMO energies also confirm that charge transfer occurs within the molecule. Finally calculated results were applied to simulated Infrared and Raman spectra of the title compound which show good agreement with observed spectra. Copyright © 2010 Elsevier B.V. All rights reserved.

  9. Spectroscopic [FT-IR and FT-Raman] and theoretical [UV-Visible and NMR] analysis on α-Methylstyrene by DFT calculations.

    Science.gov (United States)

    Karthikeyan, N; Joseph Prince, J; Ramalingam, S; Periandy, S

    2015-05-15

    In the present research work, the FT-IR, FT-Raman and (13)C and (1)H NMR spectra of the α-Methylstyrene were recorded. The observed fundamental frequencies in finger print as well as functional group regions were assigned according to their uniqueness region. The Gaussian computational calculations are carried out by HF and DFT (B3LYP and B3PW91) methods with 6-31++G(d,p) and 6-311++G(d,p) basis sets and the corresponding results were tabulated. The impact of the presence of vinyl group in phenyl structure of the compound is investigated. The modified vibrational pattern of the molecule associated vinyl group was analyzed. Moreover, (13)C NMR and (1)H NMR were calculated by using the gauge independent atomic orbital (GIAO) method with B3LYP methods and the 6-311++G(d,p) basis set and their spectra were simulated and the chemical shifts linked to TMS were compared. A study on the electronic and optical properties; absorption wavelengths, excitation energy, dipole moment and frontier molecular orbital energies were carried out. The kubo gap of the present compound was calculated related to HOMO and LUMO energies which confirm the occurring of charge transformation between the base and ligand. Besides frontier molecular orbitals (FMO), molecular electrostatic potential (MEP) was performed. The NLO properties related to Polarizability and hyperpolarizability based on the finite-field approach were also discussed. Crown Copyright © 2015. Published by Elsevier B.V. All rights reserved.

  10. Spectroscopic [FT-IR and FT-Raman] and molecular modeling (MM) study of benzene sulfonamide molecule using quantum chemical calculations

    Science.gov (United States)

    Vinod, K. S.; Periandy, S.; Govindarajan, M.

    2016-07-01

    The spectroscopic and molecular modeling (MM) study includes, FT-IR, FT-Raman and 13C NMR and 1H NMR spectra of the Benzene sulfonamide were recorded for the analysis. The observed experimental and theoretical frequencies (IR and Raman) were assigned according to their distinctive region. The present study of this title molecule have been carried out by hybrid computational calculations of HF and DFT (B3LYP) methods with 6-311+G(d,p) and 6-311++G(d,p) basis sets and the corresponding results are tabulated. The structural modifications of the compound due to the substitutions of NH2 and SO2 were investigated. The minimum energy conformers of the compound were studied using conformational analysis. The alternations of the vibrational pattern of the base structure related to the substitutions were analyzed. The thermodynamic parameters (such as zero-point vibrational energy, thermal energy, specific heat capacity, rotational constants, entropy, and dipole moment) of Benzene sulfonamide have been calculated. The donor acceptor interactions of the compound and the corresponding UV transitions are found out using NBO analysis. The NMR spectra were simulated by using the gauge independent atomic orbital (GIAO) method with B3LYP methods and the 6-311++G(d,p) basis set and their spectra were simulated and the chemical shifts related to TMS were compared. A quantum computational study on the electronic and optical properties absorption wavelengths, excitation energy, dipole moment and frontier molecular orbital energies, were performed by HF and DFT methods. The energy gap of the present compound was calculated related to HOMO and LUMO energies which confirm the occurring of charge transformation between the base and ligand group. Besides frontier molecular orbitals (FMO), molecular electrostatic potential (MEP) was performed. The thermodynamic properties (heat capacity, entropy, and enthalpy) of the title compound at different temperatures were calculated in gas phase and

  11. A combined experimental and theoretical studies on FT-IR, FT-Raman and UV-vis spectra of 2-chloro-3-quinolinecarboxaldehyde.

    Science.gov (United States)

    Prasad, M V S; Udaya Sri, N; Veeraiah, V

    2015-09-05

    In the present study, the FT-IR and FT-Raman spectra of 2-chloro-3-quinolinecarboxaldehyde (2Cl3QC) have been recorded in the region 4000-400 and 3500-50 cm(-1), respectively. The fundamental modes of vibrational frequencies of 2Cl3QC are assigned. Theoretical information on the optimized geometry, harmonic vibrational frequencies, infrared and Raman intensities were obtained by means of density functional theory (DFT) gradient calculations with complete relaxation in the potential energy surface using 6-31G(d,p) basis set. The vibrational frequencies which were determined experimentally from the spectral data are compared with those obtained theoretically from DFT calculations. A close agreement was achieved between the observed and calculated frequencies by refinement of the scale factors. The infrared and Raman spectra were also predicted from the calculated intensities. Thermodynamic properties like entropy, heat capacity, zero point energy, have been calculated for the molecule. The predicted first hyperpolarizability also shows that the molecule might have a reasonably good non-linear optical (NLO) behavior. The calculated HOMO-LUMO energy gap reveals that charge transfer occurs within the molecule. Stability of the molecule arising from hyper conjugative interactions, charge delocalization have been analyzed using natural bond orbitals (NBO) analysis. The results show that charge in electron density (ED) in the π(∗) antibonding orbitals and E((2)) energies confirms the occurrence of ICT (intra-molecular charge transfer) within the molecule. UV-visible spectrum of the title molecule has also been calculated using TD-DFT/CAM-B3LYP/6-31G(d,p) method. The calculated energy and oscillator strength almost exactly reproduces reported experimental data. Copyright © 2015 Elsevier B.V. All rights reserved.

  12. Spectroscopic (FT-IR, FT-Raman, UV, NMR, NLO) investigation, molecular docking and molecular simulation dynamics on 1-Methyl-3-Phenylpiperazine

    Science.gov (United States)

    Subashini, K.; Periandy, S.

    2017-09-01

    The title compound was analyzed, by recording FT-IR (4000-400 cm-1) and FT-Raman (4000-100 cm-1) spectra in solid phase, 1H and 13C NMR in CDCl3 (deuterated chloroform) and UV spectrum (200-400 nm) in solid phase and in ethanol solution. Conformational analysis was done using semi-empirical method PM6. The computed wavenumbers obtained from B3LYP and B3PW91 functionals along with 6-311++G (d, p) basis sets were scaled so as to agree with the experimental values and the scaling factors have been reported. All fundamental modes have been assigned based on the potential energy distribution (PED) values and the structure of the molecule was analyzed in terms of parameters like bond length, bond angle and dihedral angles through B3LYP and B3PW91 functionals along with 6-311++G(d,p) basis set. The observed HOMO-LUMO mappings reveal the different charge transfer possibilities within the molecule. The percentage contribution of a group to each molecular orbital was calculated using Gauss Sum program. Natural bond orbital analysis was computed and possible transition were correlated with the electronic transitions. Mulliken charges, electrostatic potential charges and natural charges are also predicted. The theoretical 1H and 13C NMR chemical shifts were computed using B3LYP functionals using 6-311++G (2d, p) basis sets. The temperature dependence of the thermodynamic properties; heat capacity, entropy and enthalpy for the title compound were also determined by B3LYP functional with 6-311++G (d, p) basis set. Molecular docking study shows that the title compound might exhibit inhibitory activity against Clostridium botulinum (2J3X). The interaction of the ligand (title molecule) with 2J3X for 2 ns duration and radial distribution function have been observed through molecular dynamics simulations.

  13. Conformational stability, spectroscopic (FT-IR, FT-Raman and UV-Vis) analysis, NLO, NBO, FMO and Fukui function analysis of 4-hexylacetophenone by density functional theory.

    Science.gov (United States)

    Saravanan, S; Balachandran, V

    2015-03-05

    The experimental and theoretical study on the structures and vibrations of 4-hexylacetophenone (abbreviated as 4HAP) are presented. The FT-IR and FT-Raman spectra of the title compound have been recorded in the region 4000-400cm(-1) and 3500-100cm(-1) respectively. The molecular structures, vibrational wavenumbers, infrared intensities and Raman activities were calculated using DFT (B3LYP and LSDA) method with 6-311++G(d,p) basis set. The most stable conformer of 4HAP is identified from the computational results. The assignments of the vibrational spectra have been carried out with the aid of normal coordinate analysis (NCA) following the scaled quantum mechanical force field methodology (SQMEF). The linear polarizability (α) and the first hyperpolarizability (βtot) values of the investigated molecule have been computed using B3LYP and LSDA with 6-311++G(d,p) basis set. Stability of the molecule arising from hyper conjugative interaction and charge transfer delocalization has been analyzed using natural bond orbital (NBO) analysis. The molecule orbital contributions are studied by density of energy states (DOSs). UV-Vis spectrum and effects of solvents have been discussed effects of solvents have been discussed and the electronic properties such as HOMO and LUMO energies were determined by time-dependent TD-DFT approach. Fukui function and Mulliken analysis on atomic charges of the title compound have been calculated. Finally, electrophilic and nucleophilic descriptors of the title molecule have been calculated. Copyright © 2014 Elsevier B.V. All rights reserved.

  14. FT-IR, FT-Raman, UV-visible, and NMR spectroscopy and vibrational properties of the labdane-type diterpene 13-epi-sclareol.

    Science.gov (United States)

    Chain, Fernando E; Leyton, Patricio; Paipa, Carolina; Fortuna, Mario; Brandán, Silvia A

    2015-03-05

    In this work, FT-IR, FT-Raman, UV-Visible and NMR spectroscopies and density functional theory (DFT) calculations were employed to study the structural and vibrational properties of the labdane-type diterpene 13-epi-sclareol using the hybrid B3LYP method together with the 6-31G(∗) basis set. Three stable structures with minimum energy found on the potential energy curves (PES) were optimized, and the corresponding molecular electrostatic potentials, atomic charges, bond orders, stabilization energies and topological properties were computed at the same approximation level. The complete assignment of the bands observed in the vibrational spectrum of 13-epi-sclareol was performed taking into account the internal symmetry coordinates for the three structures using the scaled quantum mechanical force field (SQMFF) methodology at the same level of theory. In addition, the force constants were calculated and compared with those reported in the literature for similar compounds. The predicted vibrational spectrum and the calculated (1)H NMR and (13)C NMR chemical shifts are in good agreement with the corresponding experimental results. The theoretical UV-Vis spectra for the most stable structure of 13-epi-sclareol demonstrate a better correlation with the corresponding experimental spectrum. The study of the three conformers by means of the theory of atoms in molecules (AIM) revealed different H bond interactions and a strong dependence of the interactions on the distance between the involved atoms. Furthermore, the natural bond orbital (NBO) calculations showed the characteristics of the electronic delocalization for the two six-membered rings with chair conformations. Copyright © 2014 Elsevier B.V. All rights reserved.

  15. Conformational analysis, spectroscopic study (FT-IR, FT-Raman, UV, 1H and 13C NMR), molecular orbital energy and NLO properties of 5-iodosalicylic acid.

    Science.gov (United States)

    Karaca, Caglar; Atac, Ahmet; Karabacak, Mehmet

    2015-02-05

    In this study, 5-iodosalicylic acid (5-ISA, C7H5IO3) is structurally characterized by FT-IR, FT-Raman, NMR and UV spectroscopies. There are eight conformers, Cn, n=1-8 for this molecule therefore the molecular geometry for these eight conformers in the ground state are calculated by using the ab-initio density functional theory (DFT) B3LYP method approach with the aug-cc-pVDZ-PP basis set for iodine and the aug-cc-pVDZ basis set for the other elements. The computational results identified that the most stable conformer of 5-ISA is the C1 form. The vibrational spectra are calculated DFT method invoking the same basis sets and fundamental vibrations are assigned on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanics (SQM) method with PQS program. Total density of state (TDOS) and partial density of state (PDOS) and also overlap population density of state (COOP or OPDOS) diagrams analysis for C1 conformer were calculated using the same method. The energy and oscillator strength are calculated by time-dependent density functional theory (TD-DFT) results complement with the experimental findings. Besides, charge transfer occurring in the molecule between HOMO and LUMO energies, frontier energy gap, molecular electrostatic potential (MEP) are calculated and presented. The NMR chemical shifts ((1)H and (13)C) spectra are recorded and calculated using the gauge independent atomic orbital (GIAO) method. Mulliken atomic charges of the title molecule are also calculated, interpreted and compared with salicylic acid. The optimized bond lengths, bond angles and calculated NMR and UV, vibrational wavenumbers showed the best agreement with the experimental results. Copyright © 2014 Elsevier B.V. All rights reserved.

  16. Copépodes, Cladocères et Rotifères du lac Sidi M'hamed Benali (Algérie Nord-Occidentale

    Directory of Open Access Journals (Sweden)

    Mohamed Ali Bouzidi

    2010-03-01

    Full Text Available En 2008, 33 espèces de Cladocères, Copépodes et Rotifères ont été observées dans le lac Sidi M'hamed Benali (contre 12 seulement en 1992.Les Copépodes dominent en mars, avril, juillet, août et septembre, avec respectivement des dominances (Do égales à : 56,6 %, 55,0 %, 55,0 %, 46,4 % et 90,0 %. Les Cladocères dominent en février (Do = 37,2 %, mai (Do = 47,4 % et décembre (Do = 48,6 %. Les Rotifères sont extrêmement abondants et présentent une large dominance en janvier (Do = 95,3 %. La population zooplanctonique est très faible en juillet et en août. Au cours de l'année le peuplement varie en fonction de la température, des conditions hydrologiques, de l'abondance de la nourriture et de la prédation par les poissons.In 2008, 33 species of Cladocers, Copepods and Rotifers have been observed in Sidi M’hamed Benali Lake (against only 12 species in 1992. The Copepods dominate in March, April, July, August and September, respectively with dominance (Do equal to 56.6 %, 55.0 %, 55.0 %, 46.4 % and 90.0 %. Cladocers dominated in February (Do = 37.2 %, May (Do = 47.4 % and December (Do = 48.6 %. The rotifers are extremely abundant and have a wide dominance in January (Do = 95.3%. The zooplankton population is very low in July and August. During the year, the population varies with temperature, water conditions, abundance of food and predation by fishes.

  17. Drift and transmission FT-IR spectroscopy of forest soils: an approach to determine decomposition processes of forest litter

    International Nuclear Information System (INIS)

    Haberhauer, G.; Gerzabek, M.H.

    1999-06-01

    A method is described to characterize organic soil layers using Fourier transformed infrared spectroscopy. The applicability of FT-IR, either dispersive or transmission, to investigate decomposition processes of spruce litter in soil originating from three different forest sites in two climatic regions was studied. Spectral information of transmission and diffuse reflection FT-IR spectra was analyzed and compared. For data evaluation Kubelka Munk (KM) transformation was applied to the DRIFT spectra. Sample preparation for DRIFT is simpler and less time consuming in comparison to transmission FT-IR, which uses KBr pellets. A variety of bands characteristics of molecular structures and functional groups has been identified for these complex samples. Analysis of both transmission FT-IR and DRIFT, showed that the intensity of distinct bands is a measure of the decomposition of forest litter. Interferences due to water adsorption spectra were reduced by DRIFT measurement in comparison to transmission FT-IR spectroscopy. However, data analysis revealed that intensity changes of several bands of DRIFT and transmission FT-IR were significantly correlated with soil horizons. The application of regression models enables identification and differentiation of organic forest soil horizons and allows to determine the decomposition status of soil organic matter in distinct layers. On the basis of the data presented in this study, it may be concluded that FT-IR spectroscopy is a powerful tool for the investigation of decomposition dynamics in forest soils. (author)

  18. High-definition Fourier Transform Infrared (FT-IR) Spectroscopic Imaging of Human Tissue Sections towards Improving Pathology

    Science.gov (United States)

    Nguyen, Peter L.; Davidson, Bennett; Akkina, Sanjeev; Guzman, Grace; Setty, Suman; Kajdacsy-Balla, Andre; Walsh, Michael J.

    2015-01-01

    High-definition Fourier Transform Infrared (FT-IR) spectroscopic imaging is an emerging approach to obtain detailed images that have associated biochemical information. FT-IR imaging of tissue is based on the principle that different regions of the mid-infrared are absorbed by different chemical bonds (e.g., C=O, C-H, N-H) within cells or tissue that can then be related to the presence and composition of biomolecules (e.g., lipids, DNA, glycogen, protein, collagen). In an FT-IR image, every pixel within the image comprises an entire Infrared (IR) spectrum that can give information on the biochemical status of the cells that can then be exploited for cell-type or disease-type classification. In this paper, we show: how to obtain IR images from human tissues using an FT-IR system, how to modify existing instrumentation to allow for high-definition imaging capabilities, and how to visualize FT-IR images. We then present some applications of FT-IR for pathology using the liver and kidney as examples. FT-IR imaging holds exciting applications in providing a novel route to obtain biochemical information from cells and tissue in an entirely label-free non-perturbing route towards giving new insight into biomolecular changes as part of disease processes. Additionally, this biochemical information can potentially allow for objective and automated analysis of certain aspects of disease diagnosis. PMID:25650759

  19. Urea, Uric Acid, Prolactin and fT4 Concentrations in Aqueous Humor of Keratoconus Patients.

    Science.gov (United States)

    Stachon, Tanja; Stachon, Axel; Hartmann, Ulrike; Seitz, Berthold; Langenbucher, Achim; Szentmáry, Nóra

    2017-06-01

    Keratoconus is a noninflammatory disease of the cornea associated with progressive thinning and conical shape. Metabolic alterations in the urea cycle, with changes in collagen fibril stability, oxidative stress, thyroid hormones and prolactin with regulatory effect on biosynthesis and biomechanical stability of corneal stroma, may all play a role in keratoconus etiology. Our purpose was to determine urea, uric acid, prolactin and free thyroxin (fT4) concentrations in human aqueous humor (hAH) of keratoconus and cataract patients. hAH was collected from 100 keratoconus (penetrating keratoplasty) (41.9 ± 14.9 years, 69 males) and 100 cataract patients (cataract surgery) (71.2 ± 12.4 years, 58 males). Urea, uric acid, prolactin and fT4 concentrations were measured by Siemens clinical chemistry or immunoassay system. For statistical analysis, a generalized linear model (GLM) was used. Urea concentration was 11.88 ± 3.03 mg/dl in keratoconus and 16.44 ± 6.40 mg/dl in cataract patients, uric acid 2.04 ± 0.59 mg/dl in keratoconus and 2.18 ± 0.73 mg/dl in cataract groups. Prolactin concentration was 3.18 ± 0.34 ng/ml in keratoconus and 3.33 ± 0.32 ng/ml in cataract patients, fT4 20.57 ± 4.76 pmol/l in KC and 19.06 ± 3.86 pmol/l in cataract group. Urea concentration was effected through gender (p = 0.039), age (p = 0.001) and diagnosis (p = 0.025). Uric acid concentration was not effected through any of the analyzed parameters (p > 0.056). Prolactin and fT4 concentration were effected only through diagnosis (p = 0.009 and p = 0.006). Urea and prolactin concentrations are decreased, fT4 concentration is increased in aqueous humor of keratoconus patients, and uric acid concentration remains unchanged. Urea concentration in aqueous humor is also increased in older and male patients. Therefore, metabolic disorder and hormonal balance may both have an impact on keratoconus development. Further studies are necessary to assess the specific impact.

  20. Soil as a Sustainable Resource for the Bioeconomy - BonaRes

    Science.gov (United States)

    Wollschläger, Ute; Amelung, Wulf; Brüggemann, Nicolas; Brunotte, Joachim; Gebbers, Robin; Grosch, Rita; Heinrich, Uwe; Helming, Katharina; Kiese, Ralf; Leinweber, Peter; Reinhold-Hurek, Barbara; Veldkamp, Edzo; Vogel, Hans-Jörg; Winkelmann, Traud

    2017-04-01

    Fertile soils are a fundamental resource for the production of biomass and provision of food and energy. A growing world population and latest climate targets lead to an increasing demand for bio-based products which require preserving and - ideally - improving the long-term productivity of soils as a bio-economic resource. At the same time, other soil functions and ecosystem services need to be maintained: filter for clean water, carbon sequestration, provision and recycling of nutrients, and habitat for biological activity. All these soil functions result from the interaction of a multitude of physical, chemical and biological processes which are insufficiently understood. In addition, we lack understanding about the interplay between the socio-economic system and the soil system and how soil functions benefit human wellbeing, including SDGs. However, a solid and integrated assessment of soil quality requires the consideration of the ensemble of soil functions and its relation to soil management. To make soil management sustainable, we need to establish a scientific knowledge base of complex soil system processes that allows for developing models and tools to quantitatively predict the impact of a multitude of management measures on soil functions. This will finally allow for the provision of options for a site-specific, sustainable soil management. To face this challenge, the German Federal Ministry of Education and Research (BMBF) recently launched the funding program "Soil as a Sustainable Resource for the Bioeconomy - BonaRes". In a joint effort, ten collaborative projects and the coordinating BonaRes Centre are engaged to close existing knowledge gaps for a profound and systemic assessment and understanding of soil functions and their sensitivity to soil management. In BonaRes, the complete process chain of sustainable soil use in the context of a sustainable bio-economy is being addressed: from understanding of soil processes using state-of the art and